On our toilet I have noticed the fresh water flush leaking into the bowl. We are having to turn the water pump off or the bowl would just fill up with fresh water. It's not pouring out but after less than an hour there was over an inch of water in the bowl. As we are in Portugal mostly wild camping it is causing us problems. Even after turning the water pump off the water we are still losing a fair amount of water. I downloaded the installation manual from the Thetford site bit it doesn't show much of how the fresh water supply is connected. I assume there must be a valve somewhere that opens when you press the button but I don't know where to start looking. I might look to see if I can disconnect the flush & block the pipe as a last resort & just flush the toilet using some sort of container. Has anybody any knowledge of where the valve for this toilet is & any ideas if it can be repaired until we get back to the UK.