Thetford Cassette C2 / C3 / C4 Manual

PARTS AND FUNCTIONS

1. Flush knob: opens and shuts the valve blade and pumps water into the bowl using an electric pump.
2. Removable seat and cover
3. Toilet paper storage compartment: keeps the paper dry and clean.
4. Wall mounting for toilet roll.
5. Waste tank level indicator: indicates when the waste tank is full.
6. Leakage tray: catches drops of flush water when the waste tank has been removed.
7. Storage compartment for toilet fluids (only the tall model).
8. Safety catch: holds the waste tank in place.
9. Drain pipe: also waste level indicator for the flush water tank.
10. Water filling funnel: turns outwards for easy filling of the water tank.
11. Cover: guarantees optimal hygiene. Opens when the waste tank is inserted into the toilet and closes when the waste tank is removed.
12. Valve blade opener.
13. Valve blade / valve seal.
14. Vent plunger: for emptying without splashing.
15. Upper handle: for easy carrying and emptying.
16. Automatic pressure release vent: ventilates the waste tank when it is inserted into the cassette toilet. Avoids excessive pressure build up in the waste tank.
17. Handle.
18. Rotating emptying spout: ensures that the waste tank can be easily and hygienically emptied.
19. Access door to waste tank and water filling funnel: lockable from the outside of the vehicle.

1. Flush knob: opens the valve and operates your vehicle's electric pump.
2. Removable seat and cover
3. Toilet paper storage compartment: keeps the paper dry and clean.
4. Wall mounting for toilet roll.
5. Waste tank level indicator: indicates when the waste tank is full.
6. Leakage tray: catches drops of flush water when the waste tank has been removed.
7. Storage compartment for toilet fluids (only the tall model).
8. Safety catch: holds the waste tank in place.
9. Valve blade opener.
10. Cover: guarantees optimal hygiene. Opens when the waste tank is inserted into the toilet.
11. Valve blade / valve seal.
12. Vent plunger: for emptying without splashing.
13. Automatic pressure release vent: ventilates the waste tank when it is inserted in the cassette toilet. Avoids excessive pressure build up in the waste tank.
14. Upper handle: for easy carrying and emptying.
15. Handle.
16. Rotating emptying spout: ensures that the waste tank can be easily and hygienically emptied.
17. Access door to waste tank and water filling funnel: lockable from the outside of the vehicle.

1. Valve blade handle: opens and shuts the valve blade.
2. Removable seat and cover
3. Flush handle.
4. Waste tank level indicator: indicates when the waste tank is full.
5. Safety catch: holds the waste tank in place.
6. Storage compartment for toilet fluids (only the tall model).
7. Drainpipe for the flush water tank.
8. Drainpipe; also waste level indicator for the flush water tank.
9. Water filling funnel: turns outwards for easy filling of the water tank.
10. Valve blade opener.
11. Cover: guarantees optimal hygiene. Opens when the waste tank is inserted into the toilet and closes when the waste tank is removed.
12. Valve blade / valve seal.
13. Vent plunger: for emptying without splashing.
14. Automatic pressure release vent: ventilates the waste tank when it is inserted in the cassette toilet. Avoids excessive pressure build up in the waste tank.
15. Upper handle: for easy carrying and emptying.
16. Handle.
17. Rotating emptying spout: ensures that the waste tank can be easily and hygienically emptied.
18. Access door to waste tank and water filling funnel: lockable from the outside of the vehicle.

INTRODUCTION

The Thetford cassette toilet is a high quality product. The functional design combines modern styling with ease of use forming an integrated part of your caravan or motorhome bathroom. The Cassette toilet is manufactured from high quality synthetic material with a high gloss finish. This makes it a durable and user & maintenance friendly toilet.
The toilet is made up of two parts: a permanently fixed toilet and a waste tank that is accessible from the outside. The removable waste tank is located under the toilet and can be removed via a door on the outside of the caravan or motorhome.
The Thetford Cassette toilet is the solution to all sanitary problems in your caravan or motorhome!

PREPARING FOR USE

Points 1 to 3 only apply to models C2 and C4. If you have a C3 cassette toilet (connected to the central water system in your caravan or camper), start at point 4.

C2 AND C4

1. Open the access door on the outside of your caravan and turn the water filling funnel outwards. Remove the cap.
   
2. Add the stated amount of Thetford toilet fluid for the water tank via the water filling funnel. This ensures a better and cleaner flush and keeps the water in the flush tank fresh. After this fill the water tank with clean mains water.
   
3. Screw the cap back onto the water filling funnel. Turn the water filling funnel back inside against the side of the flush water tank.
   Note: 150 ml water remains in the water filling funnel when the water tank in empty.
   

C2 C3 AND C4

4. Remove the waste tank by pulling the safety catch downwards.
   
5. Pull the waste tank outwards to the stop. Tip it slightly and take the tank out completely.
   
6. Place the tank upright and turn the emptying spout upwards.
   
7. Remove the cap, with the measuring cup inside, from the emptying spout and pour the stated quantity of Thetford toilet fluid into the waste tank. This quickly breaks down waste, avoids unpleasant smells in the waste tank and keeps the inside of the waste tank clean. Next add approximately 2 litres of water - enough to ensure that the bottom of the waste tank is covered. Screw the measuring cap back onto the emptying spout. Turn the emptying spout back to its original position.
   
   N.B.: The emptying spout cap is supplied in the same packaging as this manual.
   
   Never add toilet fluid via the valve blade or via the toilet bowl. This is immediately with water in the waste tank.
8. Slide the waste tank back into its original position via the access door.
   Note! Never use force if you cannot get the tank back into place easily. This may cause serious damage.
   
9. Make sure that the waste tank is secured with the safety catch. Shut the access door and lock it.
   

USE

Point 10 is applicable to Cassette toilet models C2 and C3. If you have a C4 Cassette toilet, start from point 11.

C2 AND C3

10. Run water into the bowl by pressing the flush button once. The toilet may be used with blade open or closed. To open the valve turn the valve blade handle in an anti clockwise direction. Your Thetford toilet is now ready for use.
    

C4

11. Add water into the bowl by twisting the flush handle to the right. The toilet may be used with blade open or closed. To open the valve turn the valve blade handle in an anti clockwise direction. Your Thetford toilet is now ready for use.
    

C2 C3 AND C4

12. After use open the blade (if it is still closed) by turning the valve blade knob (C4)/flush knob (C2 and C3) to the left. Flush the toilet by twisting the flush handle to the right (C4) or by depressing on the flush knob (C2 and C3). Close the valve blade after use.
    

Note! Do not leave water in the bowl if the toilet is not being used. This does not help to reduce unpleasant smells and only leads to flooding.

C2 AND C3

13. Toilet paper remains clean and dry in the specially designed integrated storage compartment. The toilet roll may also be fixed to the wall with the special holder supplied with the unit.
    
14. Replacing toilet roll: Remove the toilet roll holder from the storage compartment on its cover. Hold the bottom of the holder in one hand and the cover in the other. Push inwards gently and turn in opposite directions until you hear a click. Disconnect the two parts. Replace toilet roll. Press holder and cover back together and turn in opposite directions again until they click into place. To avoid blockages we advise the use of Aqua Soft fast dissolving toilet paper.
    

EMPTYING

The waste tank has a capacity of 20 litres. This must be emptied, at the latest, when the waste level indicator has turned from green to fully red. It is advisable to empty the waste tank earlier. The waste level indicator does not begin to change from green to red until the tank is ³/₄ full.
Note! Do not allow the waste tank to become too full.

15. Make sure that the valve blade is closed. Open the access door located outside the vehicle. Press the safety catch downwards and remove the waste tank.
    
16. Carry the tank by the handles to a normal toilet or to a legal waste disposal point. Place the waste tank upright on the ground and turn the emptying spout upwards.
    
17. Remove the emptying spout cap. Hold the waste tank by the upper handle nearest to the emptying spout. Hold the rear handle with your other hand so that you can operate the vent plunger with your thumb. Keep the vent plunger pressed to ensure the tank is emptied without splashing.
    Note! The vent plunger should only be pressed once the emptying spout is pointing downwards!
    In this way the tank can be emptied without splashing. After emptying, flush the tank and clean the valve blade thoroughly with water. Also clean the valve blade with water.
    
18. If required, make the toilet ready for use once again. Slide the waste tank into the toilet and close the access door.
    

STORAGE

It is important that you follow the instructions below if you do not expect to use the Thetford toilet for a long period.
The following text only applies to the Cassette toilet model C3. If you have a model C2 or C4, then follow the instructions under point 19, 20 and 21.

C3

If you have a Cassette toilet model C3 and your toilet is not used in the winter, follow the procedure for making your caravan or motorhome ready for the winter: Before you drain the central water system, open the Cassette toilet magnetic valve by depressing the flush button. Keep the button depressed in (or place a weight on the flush button) during the draining of the water system.

C2 AND C4

19. Completely empty the water tank via the drain pipe, which is also the level indicator for the water tank. Remove the sight glass by pulling it downwards from the upper plug. Direct the draintube out through the access door opening so that the water flows out.
    

C4

20. Flush by hand a couple of times, so that the flush mechanism is completely drained.
    

C2 AND C4

21. Turn the water filling funnel outwards to further empty the flush system. Remove the cap underneath the water filling funnel, so that the remaining flush water can flow from the tank. Your toilet's flush system will now be completely empty.
    

CLEANING AND MAINTENANCE

The waste tank seal, the automatic pressure release vent seal and the cap seal must be cleaned regularly. When the toilet is being used frequently, monthly cleaning is generally sufficient.
We advise cleaning the seals and valve blade with Thetford Bathroom Cleaner.
Note! Never use household cleaners (bleach, solvents or other powerful cleaning agents). These may cause permanent damage to the seals and other toilet components.

• Squirt Thetford Bathroom Cleaner in the toilet.
• Flush the bowl with water and wipe down the rest of the toilet with a damp cloth.
  Tip! For a really shining toilet, dry it with a soft dry cloth after cleaning.
• Thoroughly clean the seals and valve blade, rub them in olive oil and wipe them over with a cloth or a piece of toilet paper. Repeat the above operation if the seal and blade are dirty or if opening and closing the blade is getting more difficult.
  Note! Never use Vaseline or any vegetable oil except olive oil. These may cause leakage.

If the toilet will not be used for a long period, it is advisable to clean the seals and coat them lightly with olive oil. This will ensure that they remain in good condition (supple).
N.B. The valve blade seal is a part of the toilet that is subject to wear. Depending on the extent and manner of service, after a certain period the seal will lose quality and must be replaced.

WINTER USE

You can use your Thetford cassette toilet as usual in cold weather, as long as the toilet is situated in a heated location. If not, there is a risk of freezing. In that case we advise that the toilet is drained by following the instructions under 'Storage'.
For environmental reasons the use of antifreeze, such as that used in a car radiator, is not advised.

CUSTOMER SERVICE

Please visit our web site if you require further information or have questions about your toilet, www.thetford-europe.com. The information available includes frequently asked questions, problems and solutions, instructions for repair, tips and a list of Thetford dealers in your area. If you still have questions or remarks, please contact the Customer Service Department in your country (see the addresses at the back of this manual).