78scout
New Member
Hello all, I changed my 15 yr old toilet for cosmetic reasons with a cadet 3. Now the tub and toilet drain keeps backing up. Never had a problem for 28 years with that bathroom. plumber said the horizontal drain was not sloped enough when it was built 28 yrs ago. The old toilet had enough water volume to push the waste through the weakly sloped drain pipe. The new toilet is a 1.28 gpf. Will a pressure assisted 1.6gpf toilet help move things better? The horizontal drain pipe is about 30 ft. I should have just kept the old toilet! Thanks for the input.