Hi there,

Thanks again for replies.

Ok, hubby has checked and septic tank doesn't need emptying.

As for lifting the bowl, no this hasn't been done. Will have to be a weekend job, will let you know if we find anything.

Regards
crazymum10

Pull the bowl and set it up on saw horses. Fill the bowl with water and check or a leak. If you see water leaking out of the botton you have a hidden leak and the bowl must be replaced. Good luck, Tom

Could be the long black rubber hose that goes down the tube is too long and is siphoning the water out. Make sure it is short enough to avoid in coming in contact with the water.

Hi Danny...

You are responding to a thread from back in 2008, so hoping crazymum has it all resolved by now, huh?

Check the dates at the upper left of the thread so you know you'll know they're current... ;)

Mark

I don't have qa solution but I do have the problem which is why I found this site. I am in Auckland NZ and we have notbhad any appreciable rain for 2 months and this problem started recurring about 2 weeks agohaving not happened for some months. Again there a 2 toilets on the same level on a common sewerage system which is council connected not a septic tank and only1 bowl is affected. The loss currently occurs after every flush which is very frustrating. Could it be related to ground shrinkage? HELP!!