My toilet leaks at the soil pipe exit.. It is a new toilet and I have used a WC connector pipe from B&Q that has a rubber gasket to fit over the soil pipe exit but it leaks at the rubber. I suspect this is because the toilet exit pipe is not 100% circular. It is fiddly to get to the exit pipe as it is a concealed fitting toilet. I have tried to push Plumber's Mait around the rubber gasket but this has not worked. You also can't get Silicone Sealant in there. Any one have any suggestions?
Thanks for the help.