I switched my old 3.5 gpf toilet with a new style 1.6 gpf. Now the water level in the bowl is lower than the internal trap. I tried 3 other new toilets. Still same thing. The water in the bowl is still too low. Why did the 3.5 gpf work fine but the 1.6 gpf doesn't hold water?
Yes my tube is hooked up tight. I had 3 plumbers look at it scratching their heads as they left. I already stumped 3 plumbers with this. Do you think the 3.5 gpf will make the difference in bowl level.
Thanks
Do old style 3.5 gpf toilets have a higher internal trap than the new 1.6's?
Which brand has the highest trap. My toilet drain is syphoning water out of the bowl. Would a higher tighter trap stop the syphoning?
Yes there is a toilet above it. It works fine. I snaked the vents from the roof all the way to the basement. Both toilets share the same vent. Vent was clear. I change the downstairs toilet 6 times. I thought different toilet brands had their own trap design. Crane bowls seem to have the highest internal trap. My thoughts were if I had a higher trap in the bowl it would stop the suction.