System Manual - Nelsen Corporation
Contents
1. system for 10 days the warning buzzer will sound every second and an error will be shown on the display q Err flow to the system If it is not possible to resume flow the error can be cleared by spinning the flow meter installed within the valve body assembly Error Description Reason for Error SCHEDULEDISERVICE Yellow Light Illuminated capacity has been used Displays when 80 of the preset Resolution to Error Call the number shown SCHEDULED SERVICE Red Light Illuminated capacity has been used Displays when 90 of the preset Call the number shown and schedule an exchange re bed of the media SCHEDULEDISERVICE No Lights Illuminated amp Audible Alarm capacity has been used Displays when100 of the preset Call the number shown and schedule a replacement of the media immediately To silence alarm push the EC key for one second Nelsen Arsenic Reduction Systems Limited Warranty Nelsen Corporation warrants to the original purchaser the Manufactured Product the Product to be free from any defect in materials or workmanship for one 1 year from date of the original purchase Each individual component used in the assembly of the Product is covered by the original equipment manufacturer s warranty All components except those specifically listed below are warranted for a period of one 1 year from date of installation to the2. Nelsen Arsenic Reduction Systems with layne atthe Core yt ih Pc AA A Including models NARS 10 NARS 12 NARS 14 NARS 18 Homeowner Responsibilitites Due to the health hazards of contaminated water as the Homeowner you must also take responsibility to monitor your system to ensure that it is still within safe operating limits The LED lights on the control valve indicate whether the system is within the limits of the media Water Testing A water test should be performed after 6 months of system use Please call the installing dealer to have this test performed so you can feel confident that the system is working properly Additional water testing should be performed periodically to ensure there has been no additional well contamination or concentrations changed from prior testing index Introduction 2 Arsenic aco 1G ee rr re ee E E 3 Performance Specification S ascccnccanesmacnacaanseacceanskacseue ene aean inca seinen he one etetett 4 System Components Pre Installation Guidelines ee Assembly amp Loading WSTMUCUIOINS gcccn acorn cnacsiaaseacnenaseacmenanacner nace a A lAstalation UNS ree eae er ae eee aera 70 Bypass Valve Operation nena an acta anand pe dR He RE I SS 0 0G Be og igo VaVe ee eee eer ee ere eee Tee eter renee tte 10 Care amp Cleaning nnn 1 Preventative Maintenance Inspection Schedule ne 11 TrOUDLESHOOTING nina 12 Error Conditions Warranty Importan
3. the control goes into a power saving mode It does not monitor water usage during a power failure also it does not reduce the volume remaining by the amount of water used during this period Care 8 Cleaning Use only mild soap and warm water when cleaning EZOO Oxidizing agents such as chlorine the exterior of the conditioner Never use harsh or sodium hypochlorite bleach can abrasive cleaning compounds or those which contain degrade the arsenic treatment media acid such as vinegar bleach and similar products When using these products put the Important Protect your system from freezing Nelsen Arsenic Reduction System in temperatures Bypass Mode pg 9 For disinfecting the Nelsen Arsenic DANGER If your unit freezes do not attempt to Reduction System consult your Nelsen disassemble it Call your Nelsen Water Water Treatment Systems Professional Treatment Systems Professional Important NARS are sold for use on potable NOTE Following the manufacturer s instructions water only If at any time the water becomes regarding EI maintenance and contaminated such as during a boil water replacement requirements including situation the operation of the water filter should be replacement of filters if applicable is discontinued until it is verified that the water is again essential for Nelsen Water Treatment potable To do this put the system in bypass mode Systems to perform as advertised see page 9 Then call your Ne
4. volt receptacle Be certain the outlet is uninterrupted Within 5 seconds the control will automatically turn on and the display will automatically alternate between time of day current flow and total flow DOUBLE CHECK THIS CONFIGURATION Set the time of day by pushing set clock button and using Total Flow and Peak Flow buttons Put bypass valve into normal operation Turn off hot water supply and open a valve or faucet cold water position and allow the system to flush for a minimum at a time of installation a NARS 10 100 gallons b NARS 12 200 gallons c NARS 14 300 gallons d NARS 18 600 gallons Before Leaving the Installation Site Explain the operation of the filter to the customer Leave the Owner s Manual with the customer Verify that the software and threshold are set to the appropriate Model Number and your company information is entered into the control valve See the Nelsen 7000 PID Arsenic Reduction Valve Manual for information Clean up the unit and installation site Remove any soldering or pipe thread residues from the equipment and surrounding area with a damp towel Remove all packaging material and sweep up any debris that may be on the floor The Nelsen Arsenic Reduction System is now in service reducing arsenic Bypass Valve Operation Normally all water except outside lines passes through the arsenic reduction filter There are times when the water filter sh
5. mg L 10 ug L ppb Actual performance of the system may vary depending on specific water chemistry and conditions at the consumers installation Following installation of this system the Installation site should have the treated water tested for arsenic to verify arsenic reduction is being achieved and the system is functioning properly Arsenic Fact Sheet Media used for arsenic removal is affected by a number of water parameters The NARS with Layne At the Core is designed to reduce pentavalent arsenic The media was tested under laboratory conditions as defined in NSF ANSI 53 Drinking Water Treatment Units Health Effects and was found to reduce influent arsenic challenge concentration of 0 050 mg L arsenic consisting of pentavalent arsenic in the test water to less than 0 010 mg l for the tested treatment capacity 178 000 gal for NARS 10 296 000 gal for NARS 12 396 000 gal for NARS 14 and 692 000 gal for NARS 18 of delivered water for the life of the system under standard testing conditions Actual performance of the system may vary depending on specific water conditions at the consumers installation Following installation of this system the consumer should have the treated water tested for arsenic to verify that arsenic reduction is being achieved and the system is functioning properly The arsenic removal component media of this system must be replaced at the end of its useful life Gallons treated will
6. ason for your interruption of service Power Supply Check your power supply cord Is it plugged fully into the electric outlet Be certain that the outlet is not controlled by a wall switch which has been turned off Plug in the transformer Blown Fuse Check the house fuse or circuit breaker panel Replace a blown out fuse or reset an open circuit breaker Bypass Valves Check to see if they are in the proper position see Bypass Valve diagram page 9 Error Conditions If no flow is detected through the No Water If you aren t getting any water flow registering on the control valve at all make sure your water supply is working Open a tap ahead of the filter outside tap to see if you have water pressure If you have water pressure check the bypass valve If itis in the service position put into the bypass and call your Nelsen Water Treatment Systems Professional Error Codes If the words Error Call for Service appear on the main screen it indicates that there are one or more errors detected A control in the Error Mode will display one of the appropriate displays shown below along with activation of an audible beep Pushing the EC Extra Cycle key for one second while the audible beep is active will temporarily silence beep for 2 days The display screen will alternate between the error code and the phone number of your Nelsen Water Treatment Systems Professional The error can be cleared by resuming
7. damage should be documented before opening the boxes Drawing of Installed System Piping not included Pre Installation Guidelines NOTE All electrical amp plumbing should be done in accordance to all local codes Select Installation Location Select a location for the system that is Protected from freezing Not exposed to direct sunlight Easily accessible for media tank exchange e Cold water supply Water Pressure A minimum of 30 pounds of water pressure psi is required for start up rinse Maximum 125 psi Water Quality On rural water supplies there is often a problem with sand or sediment in the water This problem occasionally occurs in public water supplies WARNING All water quality criteria must be met to fully protect from Arsenic passing through the system especially iron NOTE Well and or pump problems affecting the operation of the system are repairs that are not covered under warranty To prevent these unnecessary and expensive repairs that are not covered under warranty we recommend the installation of an in line filter system ahead of a Nelsen Arsenic Reduction System Electrical A continuous 110 volt 60 cycle current supply is required Make certain the current supply is uninterrupted and cannot be turned off with another switch All electrical connections must be connected per local codes Surge protection is strongly recommended with all electric controls General Insta
8. f water containing pentavalent arsenic at concentrations of 0 050 mg l or less Please see Arsenic Facts section of the Performance Data Sheet for explanation of reduction performance e Use of the Product where water is microbiologically unsafe or of unknown chemistry without adequate disinfection before or after the media tank assembly The term media tank assembly means the media tank head assembly and media tank which together form a filter pressure vessel e The cost of shipping the Product for repair e Service calls to your home to repair the Product e Improper installation of the Product for repair e Product defects that result from improper installation or damage not caused by Nelsen Corporation e Well or pump problems affecting the operation of the Product e Defect in the Product caused by normal wear and tear or physical damage to components of the Product which may occur during normal use e Defect in the Product caused by accident negligence casualty improper service improper maintenance power outage or spike or earthquake fire flood or any other Act of God e Defect in the Product caused by failure to comply with any of the procedures specified in the Owner s manual e Defect in the Product resulting from abuse misuse alteration or use for other than intended purpose e Defect in the Product caused by extreme operating or environmental conditions e Defect in the Product caused by modificatio
9. fore filling and installing the NARS NOTE Systems with tanks 12 or greater diameter will require media loading 1 Inspect tank and distributor for any damage that may have occurred in transit 2 Locate the tank in the desired location before loading and install the control valve assembly on the tank and mark where the front is Turn the mineral tank so the front of the tank is where you want it when full The tank may be difficult to move when full Remove the control valve assembly from tank Place plastic cap over end of distributor tube the pipe going vertically down the center of the tank f cap is not provided duct tape works well o1 T Fill tank with enough water to cover distributor system by 6 this will prevent tank damage as ank is being loaded with media Using a funnel ill tank with the media per system design Clean tank threads of any mineral particles REMOVE CAP FROM DISTRIBUTOR TUBE Lubricate the distributor O ring seal and tank O ring seal Place the control valve on the tank NOTE Only use silicone lubricant Install control valve on tank making sure distributor tube is in the distributor port of the control valve Installation Instructions All electrical amp plumbing should be done in accordance to all local codes Use the NARS on a potable safe to drink home water supply only Do not use Vaseline oils or other hydrocarbon lubricants or spra
10. he Core NARS has two separate serial numbers one for the control assembly and one for the media tank The control assembly serial number can be found on the left front bottom side on the display The media tank serial number is located on the bottom of the tank DO NOT REMOVE OR DESTROY HESE SERIAL NUMBER DECALS THEY MUST BE REFERENCED IF YOU REQUIRE REPAIRS OR PARTS REPLACEMENT UNDER WARRANTY If you wish to service your system or maintain replacement components please contact your installing dealer or call 800 362 9686 for a Water Treatment Professional near you This publication is based on information available when approved for printing Continuing design refinement could cause changes that may not be included in this publication Please read this booklet carefully before beginning the installation of the NARS It contains important information about the unit including the tools and materials needed for installation accessories available from hook up to plumbing and instructions covering installation settings start up and operation The NARS has been thoughtfully designed and engineered to provide conditioned water for the specific volume when properly applied installed and operated This system and installation must comply with state and local regulations These systems are designed to reduce arsenic to less than 0 010
11. he total arsenic concentration is above 0 050 mg L please consult a Nelsen Water Treatment Systems Professional 2 The arsenic removal media removes As V If As III is present oxidation is recommended 3 Capacity will vary by individual site based on water quality and usage System Components Check with your state and local public works department for plumbing and sanitation codes You must follow these guidelines as you install the NARS tank assembly Use of an installation amp licensed professional is recommended The NARS Models are available as a single tank system tank consisting of Pressure vessel with internal distribution system e 1 Adsorptive media bed see table 1 for required amount e 1 Electronic control valve assembly with top iffuser and internal flow restrictor r e 1 Bypass valve e 2 Inlet Outlet 1 NPT fittings optional sizes available Unpack amp Inspect System Components Recommended Equipment In addition to the Nelsen Arsenic Reduction System it is recommended the following pre treatment be installed items not included e 30 Micron Pre Filter e Inlet and outlet isolation valves not required for installations where the bypass valve is installed Space Required e See Table 1 previous page The system must be installed with clear access to the media tank Before unpacking the system note the condition of the packaging Any apparent
12. inates The display will alternate between PN digits then last 4 digits and volume remaining When the sys capacity the red L remain altern number and volum The L when capac pressi numer the sys ity rem ng the EDs wil tech service phone number es through area code then fi alpha ic cyc rst 3 n em has been depleted to 10 of ED illuminates The display will ating between the technical service e remaining turn off and the buzzer will sound em has been depleted to 0 of initial aining The buzzer can be silenced by EC key for one second The buzzer will turn back on in the amount of days specified by the BT Buzzer Time value in master programming AW iti The display also has three warning lights Green Light Yellow Light Red Light Red Light Off amp Beeping System is at 20 CAPACIT There is power going to the system Y REMAINING see Table 1 page 4 System is at 10 CAPACITY REMAINING Arsenic can begin to creep through the system System is at 0 CAPACITY REMAINING the LED s will turn off and the alarm will sound three 3 times every 15 seconds The alarm can be silenced by pushing any button and will be silenced for 2 days Arsenic will now pass through the system Power backup continues to keep time and the passage of days for a minimum of 48 hours in the event of power failure During a power failure
13. llation Conditions amp Restrictions Installation and use of the NARS with Layne at the Core must comply with state and local laws and regulations This system must be installed near the incoming potable water line in accordance with the detailed instructions in this manual The NARS is not intended to purify non potable sources of water Do not use with water that is microbiologically unsafe or with water of unknown chemistry without adequate disinfection before or after the system The NARS is not a disinfection or purification system The NARS is designed to reduce arsenic to less than 0 010 mg L Please see Arsenic Fact Sheet for further information see page 3 General Operational amp Maintenance Requirements Compliance with operational maintenance water testing requirements and replacement requirements as noted in this manual is essential for the product to perform properly Assembly amp Loading Instructions Assemble Control Valve amp Tank The control valve comes pre assembled with the flow restrictor the flow restrictor is integral to the system and is installed from the factory and removal of the flow control will violate the performance claims On site the upper basket bypass valve and inlet outlet fittings will have to be installed For media loading please see below The media tank can become very heavy when It is filled with media and water so it is important to lay out the assembly be
14. lsen Water Treatment Systems Professional to have your system sanitized before it is placed into service Should service adjustment or trouble shooting information be needed which Is not covered in the Owner s manual call your Nelsen Water Treatment Systems Professional Preventative Maintenance Inspection Schedule Nelsen Arsenic Reduction Systems have been Water Treatment Systems Professional and or user designed to provide good consistent service The system Is for problem water use and routine life Routinely inspecting the system may help maintenance is required Contact your local Nelsen avoid potentially costly breakdowns related to Water Treatment Systems Professional to perform circumstances outside of the control of the Nelsen routine maintenance Component Suggested Inspection Frequency Reason for Maintenance Entire System At Start up after infrequent use idle On private supplies the appearance of off taste for one week or more or every 6 and odors particularly if musty or rotten egg months to a year caused by harmless sulfate reducing bacteria may Indicate a need for the system to be sanitized see caution above As needed Replace when arsenic can no longer be removed 11 Troubleshooting If you unexpectedly experience changes in your water make these simple checks before calling your Nelsen Water Treatment Systems Professional One of the following conditions may be the re
15. ment media will temporarily remove it from the water before it is displaced by sulfates Once it is displaced the hydrogen sulfide will impart an odor to the water Performance Specifications TABLE 1 Model Number Service Flow Rate NARS 10 6 6 gpm NARS 12 10 gpm NARS 14 15 gpm NARS 18 26 gpm Capacity gallons treated 178 000 296 000 396 000 692 000 Tank Size 10 x 44 12 x 52 14 x 65 18 x 65 Filter Media LayneRT Total Media Amount 1 0 cu ft 1 5 cu ft 2 0 cu ft 3 5 cu ft Underbedding None Dimensions approximate 10 x 24 x 52 12 x 24 x 60 14 x 24 x 73 18 x 24 x 73 Inlet Outlet 1 MPT Rated Service Flow d Pressure Drop 6 6 gom d 5psi 10gpm 4psi 15 gpm 4 5 psi 26 gpm a 5 psi Temperature Range 40 F 100 F Operating Pressure 30 120 psi Electrical Requirements 110 volts Backwash TABLE 2 pH Range Not Applicable Do Not Backwash Water Quality Criteria 5 5 8 5 Arsenic lt 05 mg l Arsenic Type Pentavalent Phosphate PO4 as P lt 0 150 mg l lt 0 05 mg l Silica lt 20 mg l Iron c 0 3 mg l Manganese lt 0 05 mg l Hydrogen Sulfide Non Detectable Chlorine Residual lt 1 0 ppm Tannins Non Detectable Hardness Not Applicable Does not effect the performance of the media 1 If t
16. n tampering or repair by any party other than Nelsen Corporation e Defect in the Product resulting from damage during shipping How do I make a warranty claim e Contact the dealer from whom you purchased the unit How does state law relate to this warranty e This warranty gives you specific legal rights and you may also have other rights which vary from state to state DISCLAIMER THE WARRANTIES SET FORTH HEREIN ARE EXCLUSIVE Nelsen Corporation DISCLAIMS ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ANY WARRANTY CLAIMED TO ARISE FROM COURSE OF DEALING COURSE OF PERFORMANCE OR USAGE OF TRADE 2013 Nelsen Corporation NARS MANUAL 0313
17. ng Heat from soldering or solvent cements may damage the O ring Solder joints should be cool and solvent cements should be set before installing the O ring Avoid getting primer and solvent cement on any part of the O rings bypass valve or control valve The red plastic H clips will break if you attempt to force into position withou connector into the body If the connector is inserted properly the red clip insertion path will be clear 8 fully inserting the A jumper ground wire should be installed between the inlet and outlet pipe whenever the metallic continuity of a water distribution piping system Is interrupted Install grounding strap on metal pipes Initial Start Up The initial startup will probably be done by the technician installing the system If not the following step by step instructions will guide you through the process 1 Complete all plumbing connections inlet outlet and drain line a Slowly turn on the water supply b Check the entire system for leaks c If leaking from fittings shut off water supply and tighten or reseal fittings d If leaking between the tank head assembly and media tank tighten the media tank while holding the head assembly Place the bypass valve in the bypass position Turn on the main water supply Open a cold soft 4 water faucet to flush the piping of any air and or foreign material Run until the water is clear Now plug the transformer into a 120
18. original purchaser to be free of defects in materials and workmanship subject to the manufacturer s conditions and or the conditions shown below The fiberglass polyglass or composite mineral tank used in the assembly of this unit are warranted to be free of defects in materials and workmanship for a period of ten 10 years on 10 amp 12 size tanks and five 5 years on 14 and larger size tanks subject to the manufacturer s conditions and or the conditions shown below Warranty does not cover sandblasting of tank caused by faulty distribution systems fractures caused by external impact and exposure to vacuum The control valve is warranted to be free of defects in materials and workmanship for a period of five 5 years subject to the manufacturer s conditions and or the conditions shown below This warranty excludes e Performance of the media The Arsenic Reduction media has been tested against NSF ANSI Standard 53 for the reduction of pentavalent arsenic up to the capacity stated in table 1 for the given model number The concentration in water entering the system was reduced to a concentration less than or equal to the permissible limit for water leaving the system as specified in NSF ANSI 53 The arsenic removal component of this product must be replaced at the end of its useful life as stated for its model Performance will vary based on local water conditions The media has been tested for the treatment o
19. ould be bypassed You should bypass 1 Iflines to outside faucets do not bypass the water filter and you do not want to waste the filtered water on lawn sprinkling or other outside uses 2 If you are using any chemicals i e disinfection products to service your well or any other filtration products installed prior to the arsenic reduction system NOTE To bypass the valve turn bypass knob on both sides of the valve to bypass position When returning to service put the inlet into service before outlet Both knobs must be turned to the Same Position for proper Service or Bypass mode Hole positions in bypass mode should be verticle to the control valve for both knobs Top view looking down on the Bypass Valve The control valve keeps track of the guantity of water that has flowed through the media bed Parameter Data PM Error Display Display Indicator Information x Icon v a M L LJ PM Flow Service xX HA I li l Indicator Icon e y pi 10 IL LIL x1000 EN Programming Indicator Icon ie Button Extra lee Button J Sind Control Valve Display When the unit is in service the green LED will be illuminated and the vo ume remaining VL will be displayed As water passes through the system a flow meter will calcula decreased from the vo When the system has been depleted to 20 of te the amount of water to be ume left wn capacity the yellow LED illum
20. please consult a water treatment professional Arsenite As III The NARS is designed to remove As V If arsenite is present it is recommend to oxidize the water prior to the arsenic removal media Contact your Nelsen Water Treatment Systems Professional for oxidizing options pH Adsorption media operate most effectively between pH 5 5 and 8 5 At elevated pH silica becomes a more aggressive interfering species Do not use organic acids such as citric or acetic acid to adjust the pH ahead of the media Silica Levels above 20 mg L begin to interfere with arsenic adsorption on the media when combined with a pH above 7 5 Phosphate P04 Levels above 0 150 mg L as POS or levels above 0 05 mg L as P will reduce media life for arsenic adsorption Iron amp Manganese Soluble iron and manganese may precipitate onto the media bed If iron and manganese are above the secondary MCLs 0 30 mg L and 0 05 mg L respectfully it is recommend to remove them before the arsenic removal system Hardness Hardness does not significantly affect the performance of the arsenic removal media Oxidation Disinfection Oxidizing agents such as chlorine or sodium hypochlorite bleach can degrade the arsenic treatment media If chlorine is present in the raw water gt 1 0 ppm residual it should be removed prior to the media with activated carbon filtration Hydrogen Sulfide If hydrogen sulfide is present the arsenic treat
21. t Dealer Homeowner Information Your Nelsen Arsenic Reduction System with Layne at the Core is a precision built high quality product This unit will deliver arsenic filtered water for the prescribed capacity when installed and operated properly Please study this manual carefully and understand the cautions and notes before installing This manual should be kept for future reference If you have any questions regarding your water treatment system contact your installing dealer or the manufacturer at the following Nelsen Corporation 3250 Barber Rd Norton OH 44203 introduction Safe Practices Throughout this manual there are paragraphs set off by special headings NOTE Note is used to emphasize installation operation or maintenance information which is important but does not present any hazard Example NOTE Systems with tanks greater than 12 diameter will require media loading CAUTION Caution is used when failure to follow directions could result in damage to equipment or property Example CAUTION Bro not use Vaseline oils or other hydrocarbon lubricants or spray silicone anywhere on the system WARNING Warning is used to indicate a hazard which could cause injury or death If ignored Example WARNING Electrical shock hazard Unplug the unit before removing the cover or accessing any Internal control parts Serial Numbers The Nelsen Arsenic Reduction System with Layne at t
22. vary depending on water quality and arsenic concentration of source The Homeowner should contact their Professional Water Dealer for the replacement media and the proper disposal of the exhausted media Arsenic Facts Arsenic As is a naturally occurring contaminant found in many ground waters It generally occurs in two forms valences or oxidation states pentavalent arsenic also known as As V As 5 and arsenate and trivalent arsenic also known as AsIII As 3 and arsenite In natural ground water arsenic may exist as trivalent arsenic pentavalent arsenic ora combination of both More information about arsenic and Its toxicity can be found on the Agency for Toxic Substances and Disease Registry Toxicological Profile on Arsenic website at www atsdr cdc gov phs phs asp id 18 amp tid 3 and U S Environmental Protection Agency website at www water epa gov lawsregs rulesregs sdwa arsenic index cfm Arsenic does not generally impart color taste or smell to water and therefore can only be detected by a chemical analytical test Public water supplies are required to monitor delivered water for arsenic trivalent plus pentavalent arsenic and the results are available to the public from the utility Consumers using private water sources will need to make arrangements for testing It is recommended that the test be done by a laboratory Total Arsenic If the total arsenic concentration is above 0 050 mg L
23. y silicone anywhere on the system A silicone lubricant may be used on black O rings but is not necessary Avoid any type of lubricants including silicone on red or clear lip seals Do not use pipe dope or other sealants on threads Only teflon tape may be used on threads Teflon tape is not necessary on the nut connection or caps because of O ring seals Do not use Teflon tape or other sealant on the control tank threads or tank 1 When positioning the system insure that the space beneath is solid clean and level 2 Locate the system in a protected area where it cannot freeze 3 Locate the system within 15 feet of a 120 volt electrical grounded outlet that can be dedicated o the units use Use of an extension cord should be avoided and may not be approved by local electrical inspectors in some areas 4 Do not install in an outside location prone to reezing temperatures or anywhere exposed to sunlight and freezing 5 Allow easy access to the tank for removal and exchange as well as access to the control valve for sampling Installation Instructions continued 6 Do all necessary plumbing inlet to inlet outlet to outlet The control valve fittings and or bypass are designed to accommodate minor plumbing misalignments but are not designed to support the weight of a system or the plumbing When assembling the fittings amp bypass connect the fitting to the plumbing system first and then attach the O ri
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