Not much help probably i.t. but I don't use the flusher, instead I have a small bottle of water and do it that way, saves on water that way. I also wipe out the bowl with disinfectant wipes and throw them out in the rubbish.

To save water. I have limited water most of the time so every drop saved helps.

Barry, we have the press button - whilst drepressed it flushes and stops when you take finger off button, so can use as little as needed, but sometimes we have the same problem as you. It usually splashes over the front - not very often though.

Ive done the same thing as you and that's feeling up under the lip of the top of the bowl for any adjustable water pipes - but no joy. I spoke our Dealers caravan shop. The Mngr there has been in the RV game for about 30 years and said this problem is quite common and Thetford has tried to fix the design, but without success. He said though, that often its caused when the RV is not level and so the water flows out quicker at its lowest point rather than equally all around. Since then, I've noticed that if it does "overflow" the van is not very level.

We have it happen maybe once in every 50 or so flushes, and not much splash, so we just wipe up this clean water marks with toilet paper and it goes in the rubbish bin

Hi BJC
We find we have trouble if we don't bleed the air from the water lines as the air squirts the water. Also don't push on the toilet button hard, more of a half press. We find if we press hard on the button it splashes. Alternatively you could turn the tap down on your connection to the van.

Cheers Rod & Lorraine

I too have that splash problem occasionally.  

As a temporary measure I use a small wad of toilet paper & often think about putting a dab of sikaflex on the edge of the bowl to break the water flow, but never do it.

I try to only briefly push the flush button but that doesn't work for SWMBO.

 

I'll put the problem on my 'Fix it' notice board in the van & then one slow day I might actually get to have a good look at it.

If the van builder left the plastic bag of fittings that were 'surpless' when the toilet was fitted you should find a small piece of yellow or orange tube (can't remember exactly).

You will find this tube sleaves into the tube that carries the water to the bowl when flushed.

Easily installed you just cut the water feed tube and push each end over the small supplied tube.

When installed it acts as a reducer and still allows enough water for a successful flush but shouldn't allow enough pressure to overflow the lip of the bowl.

 

 

Does your Van have a Pressure Regulating Valve fitted at the Mains Water Entry either the Shurflo Type or the Brass Plumbing Type as used in Household systems. Most are 350kpa-50psi rated units. If not then you could have TOO much Water Pressure. We have NEVER had a problem with our Thetford C200 Toilet flushing system, except as said before when AIR pockets need bleeding from water pipes/system.

Cheers Kev.

we're the same as Sparkster - and if they didn't fit all the bits when fitting out the van - they threw them in the bin. Ddidnt have any spare parts left when we bought the van.

We just press the button more carefully and not for too long - sort of short flushes till the business it done

mr glassie, the last few years they've changed to the flushing water being drawn from the main supply, either the on board tank or whatever you are drawing from.