Robert Zack
Member
i have a toilet flange seal that will not seal. the last attempt a heavy duty wax ring with the cone insert was used. because a 1/4" subfloor was added the flange is only about 1/8" above the floor level. could this be the problem? there is no visible damage to the toilet. this is a copper stack & flange so there is no easy way to raise the flange. if this is the problem is there a way to shim the flange? i've installed a lot of flange seals over the years but have never had this problem. in the past it would hold for several months & then start weeping. this time it lasted 4 days.