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1. User Manual for MullToa English Congratulations on your purchase of Mull loa toilet Your bio toilet is patented and manufactured in Sweden and the brand is MullToa MullToa means that it produces natural humus in the actual unit without the use of water or chemicals Our largest model has been awarded the Nordic Ecolabel the Swan mark INTRODUCTION Please read all these instructions before beginning to install your Mull Toa toilet Experience has shown that problems that usually occur are almost always related to installation and maintenance To ensure hassle free use please take a moment to read through the manual Three important things to always remember When the toilet is in use room temperature must be at least 18 C If you are away for more than two days you should always switch power off and place the cover over the seat opening otherwise the compost will become dry The moisture content is an important component of the biological process so it is important to retain the moisture as long as possible even when the toilet is switched off Apart from the natural needs being taken care of during a visit to the toilet the only thing that should go into the toilet is toilet paper Your new MullToa experience starts here We hope you will be completely satisfied CONTENTS How MullToa works 3 If the red lamp lights up 6 Co2. Check that any pipe bends you have are not over 45 and that you do not have more than two bends What do I do if the mixer motor does not work The mixer motor is protected in two different ways in order to prevent damange on mechanical parts The motor runs normally but the mixing arms do not move Eng There is a shear pin mounted in the motor shaft When the resistance is too high the shear pin breaks and must be replaced The motor starts and stops and after a while it starts again by itself but the mixing arms are still not moving The electrical motor has an overheating protection which activates if the resistance is too high It will turn itself off But it will try again after a while and it will repeat this until the high resistance in the compost has been resolved It usually is enough by mixing the compost using the manual rake and adding a few litres of humus starter See What do do if the compost becomes too dry page 8 What do I do if the shear pin breaks There is an extra shear pin next to the mixer motor or on Mod 15 on the back of the toilet 1 Unplug the toilet 2 Lift the toilet at the front pull it forward and loosen the ventilation pipe 3 Unscrew the round nut holding the switch 13b for the mixer and press the button inside the plastic and remove pull the thermostat dial 2 4 Loosen the nut for the compost cover 13c Lift the upper section 5 Disconnect the wires that connect t
3. be turned a couple of times after each use This is so that waste and paper will be mixed into the compost and to make it more porous This is essential for efficient composting setting the thermostat Start Before the first use the thermostat should initially be set according to how many people will be using the toilet Number of Recommended people setting at start 1 2 1 5 3 4 6 7 8 10 emptying For higher or lower loads you can easily change the settin How to set the thermostat according to use HOW TO SET THE THERMOSTAT MOD 15 25 Adjust the thermostat according to the load Check the liquid level tube 23 on the right side The thermostat works in two steps e Setting 0 the power is off e Setting l 7 the top heating element 5 is on depending on setting e Setting 8 10 top and bottom 9 heating elements on HOW TO SET THE THERMOSTAT MOD 55 65 Adjust the thermostat according to load Check the liquid tube 23 on the right hand side The thermostat works in two steps depending on the setting step one through the float in the tray and step two bypassing the float e Setting 0 the power is off e Setting 1 7 the heat is controlled by the thermostat setting and depending on the amount of liquid in the tray the float turns the heat on and off e Setting 8 10 the heat is on regardless the amount of liquid in the tray The float measures liquid level in the tray This minimizes the risk of the compost becoming too
4. by f i toilet paper But when the signal becomes more consistent it is time to empty the tray Eng THE GRATING MOD 55 65 The lower mixing arms 18c have two sleighs attached These sleighs opens and closes the grating after each use of the toilet The grating is closed when the toilet is not being used to maintain the moisture in the compost When the mixing arms turn the grating will be opened and at the same time the arms pushes compost down through the grating into the tray THE FLOAT MOD 55 65 The toilet has a float controlled heat which turns on off depending on the level of liquid in the tray Heat goes on when the liquid level in the tray is about 2 3 cm This minimizes the risk of the compost becoming too dry and also creates a more efficient composting Check the liquid tube 23 every week If the liquid level increases adjust the thermostat until the level is reduced EMPTYING FREQUENCY In vacation homes with a four to six weeks stay per year it is usually enough to empty the tray once But at more frequent use you have to adapt the emptying frequency The general rule is to empty the tray when the compost level reaches the upper mixing arm You soon learn to adapt the emptying frequency according to use The tray will be filled up again after a couple of days in use It will only take a few days after emptying before the tray is filled and should stay full for more composting EMPTYING IN SPRING Where you can ge
5. level tube on the left side as viewed from the front the tray has overflowed Increase the thermostatsetting and wait a couple of days before emptying 4 If the compost does not become drier the excess liquid will need to be emptied out Loosen the level tube 22 at the top and connect a garden hose Note Do not open the front cover 5 1 If the toilet is full empty the tray lt might be necessary to repeat this until the volume is back to normal What can be put in the toilet The toilet can be used like any other including for the disposal of toilet paper However the disposal of items such as sanitary towels or tampons cigarette butts burning or glowing objects is not allowed What do I do if there is a bad odour in the toilet room Answer A properly installed and maintained MullToa is completely odour free If you do experience a bad smell in the toilet room it is an indication that something is wrong Make sure you have carefully followed the installation and maintenance instructions using the quick guide below and you will probably be able to determine the cause of the malfunction Check that the Biolet is getting enough air through a vent in the outer wall Make sure the front cover is closed properly Avoid draughts by not having both windows and vents open at once or bathroom fan running Check that the pipes fit the toilet properly Check that the pipe joints are sealed completely tight au h uN
6. tools available Electric drill Hole saw 55 mm or Compass saw Saw Measuring tool Asphalt sealant adhesive Also check that the floor area where the toilet is to be positioned is large enough The floor area required is Model 15 25 and 55 width 55 cm x length 110 cm for the toilet and removal of the tray Model 65 width 65 cm x length 135 cm for the toilet and removal of the tray Pipe installation All pipes going through the ceiling into cold spaces e g the attic must be insulated This is to prevent draughts and condensation in the ventilation pipe Insulation is essential regardless of how much or how little the toilet is used Do not use pipe bends over 45 Do not use a rain cap on top of the ventilation pipe the air must be allowed to flow freely Only the insect netting should be on top of the pipe Temperature The room in which the toilet is installed must be insulated When the toilet is in use the room temperature must be at least 18 C to ensure it functions properly The easiest thing to do is to install a thermostatically controlled radiator If the toilet is not in use then the temperature need not be controlled low temperatures will not damage the unit Air supply In order to ensure adequate air supply a vent should be installed in the exterior wall The exhaust air is evacuated through the toilet Avoid having a bathroom fan in the toilet room as it creates a back draught which
7. can lead to odours in the room SS mbly Reducing coupling Set the toilet in position against the wall MIN 0 5 m Pipe 110 mm Eng The floor must be even and insulated s 2 Measure and make a hole for the ventilation ME noot tashin pipe in the ceiling with 55 mm diameter Install the ventilation pipe with the non sleeved end down inside the rubber coupling on the toilet N MAX 45 Emm 3 Measure and make a hole in the roof Insulation with 55 mm diameter A 4 Push the pipe up through the hole Seal it well o using asphalt sealant between the pipe and the N Zu A roof to prevent any leaks 55mm 5 Insulate the pipe from the ceiling up to the top E gt JA LS LA S All pipework in cold spaces must be insulated U A Radiator VENT alteri 6 Cut the exterior pipe to fit the angle of the roof 7 Place the roof flashing on to the exterior pipe Use soapy water to make it easier If you have a tin roof the best thing to do Roof flashing is to get a lead worker to create a junction between the roof and the exterior pipe Korean 8 Pass the exterior pipe over the ventilation pc pipe s insulation Put on the reduction Siaaved end M coupling 9 Adjust the roof flashing and seal firmly with seal of asphalt asphalt sealant between the roof flasing and Roof brick paper or plate plastic the roof 10 Fit the inse
8. ct netting against the stop on the reducing coupling Starting the empty toilet 1 Pour 2 3 of the bag of MullToa humus starter into the toilet and the whole bag model 65 About half of the humus starter will fall through the grating into the tray 2 Plug into an earthed socket Open the lid and the motor will start automatically and run for a short while Close the lid and the motor will make one turn Repeat this a couple of times Turn the handle Model 15 several times This will fill the tray and leave aprrox 5 10 cm on top of the grate The tray will be full until you empty it the first time 3 Setting the thermostat This depends on how many people are going to use the toilet See recommended use in the separate sketch under maintenance instructions page 6 MAINTENANCE Extra humus starter For the best composting the compost must be of a porous and moderately moist consistency You can put in litre of humus starter a week in order to maintain a pourus compost Use the humus rake to mix the humus starter in Use the humus rake to mix the humus in If hard lumps form in the compost make sure you break them up Hard lumps can be a sign that the heat is too high If this is the case turn the thermostat down When the seat cover is opened the motor will start automatically and run for a short time Close the lid after the toilet has been used The motor will start again and complete a full turn Model 15 must the handle must
9. dry The float does not increase the heat this is done through the thermostat LIQUID IN THE LEVEL TUBE The level tube on the right hand side viewed from the front 23 shows how much liquid there is in the tray There will always be some liquid in the tray but the tube should definitely not be full this would mean the tray is full of liquid One centimetre of liquid in the tube is OK If your compost is too moist or if you have an extra load over a longer period of time turn up the thermostat RIGHT TEMPERATURE At the right temperature the compost has a porous and moderately moist consistency If liquid stays on top of the compost and seeps down into the tray slowly then the compost is too wet and can no longer absorb the liquid as intended Increase the thermostat setting slowly and add a few litres of humus starter On the other hand if hard lumps form or toilet paper remains on top so that it doesn t get soaked and mixed in properly during mixing the compost is too dry If so turn the thermostat down IF THE RED LAMP LIGHTS UP MOD 55 65 This indicates that the level of liquid in the tray is getting too high Increase the thermostat setting to 8 10 Lower the setting when the lamp signal is switched off and the level in the tube has been reduced IF THE WHITE LAMP LIGHTS UP MOD 55 65 This is an indication that the level in the composting chamber is getting to high The lamp 24 might turn on and off for a period of time caused
10. e same time it may be useful to break up the compost through the seat using the rake You should also use toilet paper sparingly as this is broken down more slowly when the compost is too dry If the compost is consistently too dry despite the thermostat being at position 1 2 then you can install a timer that turns the toilet power off at night How do I know if the compost is too wet Answer When the compost is no longer able to absorb liquid and it stays on top of the compost What do I do if the compost becomes too wet Answer First check that power is reaching the toilet so that the fan and heater works If the fan and heating element are working correctly then you should be able to hear it and also feel the heat on the back of the toilet with your hand Then check That the ventilation pipe has been installed according to the instructions and that it is well insulated That the temperature inside the room is at least 18 C If the toilet has been overloaded if so the thermostat setting needs to be adjusted That there is plenty of air being supplied through the wall vent Drying up the compost do the following 1 Mix a few litres of MullToa Special Humus into the moist compost until all the liquid has been absorbed 2 If there is liquid in the level tube turn the thermostat up to a higher setting Do not turn it down to a lower setting until the liquid regains its normal level 3 If there is liquid in the
11. he mixer motor 14 to the terminal block on the electrical panel Memorise or take a picture off their postions before disconnecting them 6 Remove the four Phillips screws holding the mixer motor in place in the lower section 7 Lift the mixer motor straight up If the mixer motor is wedged in the shaft then try lifting the motor up while you rotate the shaft with an adjustable spanner 8 Working on a rigid surface or by fastening the motor shaft in a vice tap out the remains of the broken shear pin 17 using a mandrel or the new shear pin 9 Tap in the new shear pin and put the mixer motor back 10 Reattach the wires to the terminal block 11 Perform a test run 12 Replace the top section the round nut holding the switch for the mixer in place and the nut for the compost cover 13 Put the toilet in place 14 Switch the power back on When do I need to call a qualified electrician MullToa is approved for installation in bathrooms If the main cord is damaged it must be replaced by the manufacturer or its repair business or another qualified person to prevent injury This warning is placed near the toilet Where do I get parts and service Contact your national dealer Always have the serial number and model at hand This information can be found on a sticker at the upper back of the toilet
12. ntacting Environmental Health 3 If the white lamp lights up 7 Your MullToa package 3 Emptying the tray 7 Installation package 3 Grating 7 Extra accessories 3 Float 7 MullToa cross section all parts 3 Emptying frequency 7 Installation 4 Emptying before season 7 What you need 4 Switch the power off 7 Pipe installation 4 Leaving the house for a couple of days or more 7 Temperature 4 At the end of the season 7 Air supply 4 At the start of the season 7 Assembly 5 FAQ 8 9 Starting the empty toilet 5 Bad odour 8 Maintenance 6 Compost too dry 8 Regular maintenance 6 Compost too wet 8 Mixing 6 Replacing the break pin 9 Setting the thermostat 6 Spare parts and service 9 Liquid in the level tube 6 Keeping the compost at right temperature _ 6 How the Mull loa works The MullToa is a biological toilet that composts waste and evaporates liquid in the toilet itself The composting Eng process takes place using nature s own microorganisms without the need of any chemicals The toilet should be used as any other Controlled air supply and heat as well as regular mixing of the compost accelerates the composting process and converts the waste into eco friendly humus This makes a nutrien rich supplement for your garden Contacting Environmental Health Contact Environmental Health office regarding local health regulations This applies when installing any type of toilet Your Mullloa package The MullToa box contains A toilet a 50 cm hum
13. t by with one emptying a year leave the compost in the toilet over the winter The tray is then emptied in the spring before the toilet starts to be used EMPTYING THE TRAY A few days before emptying increase the thermostat to 10 to dry up the liquid in the tray Once it has disappeared from the level tube do as follows 1 Switch the power off 2 Make sure that there is no liquid in the level tubes on the right 23 or left 22 3 If there is liquid increase the thermostat setting and wait a few days before emptying 4 Emptying Remove the front cover 21 Remove the tube to the tray If the tray is stuck in place due to compost between the tray and the grating having dried release the tray by pulling the humus rake back and forth between the tray and the grating 5 Empty the tray in a suitable place for post composting such as in the garden compost 6 Clean the tray Before you slide it into place check that the area where the tray goes is clean 7 Replace the level tube Replace the front cover For more frequent use for example in the event of permanent use the more often the tray has to be emptied If the toilet has not been used for the last 2 months the contents in the tray can be used as fertilizer immediately But when emptying the tray in the middle of the season the contents needs to compost further for about 2 months Remove the full tray and replace it with an additional tray which can be bought from us Put the f
14. ull tray in a plastic bag Prepare for brief absences If you are away for more than two days turn the power off and put the cover into the seat opening otherwise the compost will become hard and dry If there is a lot of liquid for example after heavy use you can leave the toilet running for a limited period approximately one week Leave the toilet running with the thermostat in position 1 Then only the fan will run and the contents of the tray will dry slowly At the end of the season When the season is over and it is time to leave your holiday cottage unplug the toilet and put the cover in the seat opening You can also turn off the heat in the toilet room as the MullToa does not freeze and break New season approaching When the season is approaching and it is time to open up your cottage it is also time for the MullToa to be used again after a long break Check if the compost has become hard If so break it up with the rake Then emplty the tray If there is less than 10 cm of compost on the grate add som more humus starter FA How do I know if the compost is too dry Answer The forming of hard lumps indicates that it is too dry Another indication is that toilet paper remains on top instead of becoming wet and getting mixed in properly during mixing What do I do if the compost becomes too dry Answer Use the thermostat to reduce the heat to a lower level and spray a couple of litres of water on the compost at th
15. us rake and a bag of humus The installation package accessories The installation package contains ventilation pipes 4 x 1 1 m ventilation pipe with 55 mm outer diameter exterior pipes 2 x 0 5 or 1 0 m 110 mm outer diameter insulation 2 x 1 m reducing coupling roof flashing and insect netting Optional accessories Optional accessories pipe bends 30 and 45 additional insulation straight pipes humus starter an extra tray and a kit for installation through the outer wall Mullloa in cross section 1 Rubber coupling 20 Grating 2 Adjustable thermostat and switch 21 Front cover 3 Fan motor 22 Liquid tube overflow at the left hand side seen from the front 4 Micro switch float 23 Liquid tube tray at the right hand side seen from the front 5 Heating element 24 Indication lamp time to empty the tray white 6 Airflow 25 Indication lamp high liquid level red 7 External cord 26 Sensor arm compost level 8 Composting chamber 27 Handle mixing 15 9 Rod for liquid indicator 10 Float 11 Tray a 12 Lower heating element 13 a Switch for mixing motor 25 55 and 65 3 b Nut for switch 4 c Nut for compost cover 5 14 Mixer motor 15 Plug 16 Compost cover 17 Shear pin 18 Shaft with mixer arms a a Upper mixing arm 9 b Fixed arm 10 c Lower mixing arm with grating 11 O c ASH 19 Airflow 12 l INSTALLATION What you need For installation you need to have the following
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