Pull toilet and cut down flange?

[Tammyw]

Hello, We recently purchased a 2014 Wildcat Max TT and seem to have an issue with solids building up at the bottom of the toilet neck. It appears that at the base of the neck of the toilet there doesn’t seem to be enough room to exit the tube and go to the tank. We have clean/drained/flushed numerous times and all liquids seem to exit without any obstruction. But as soon as there are two bowel movements, it seems to clog right at the bottom of the toilet, before the solids can enter the tank. We have bought a swirling flexible tank cleaner, but can’t get it to bend in any direction at the bottom of the neck of the toilet.
We spoke with a Forest River representative and he said we will need to have the toilet pulled and have the flange going into the tank cut off so that the down pipe is shorter to allow better flow.

Has anyone ever heard of and attempted this? If so, what was your experience? Was it hard to do? My husband is a general contractor but hasn't done any sort of repairs to an RV before.
Appreciate the help
Thank you,
Tammy

[Bama Rambler]

It sounds like the downpipe is sticking too far into the black tank. The trick is to cut it off enough, but not too much.

You can buy internal PVC pipe cutters that make it pretty easy to cut the downpipe off. You may also need to buy a hex extension to get far enough down the pipe to get into the tank. If you do use an extension, be sure to tape the bit to the extension.

You need to know the depth of the tank where the pipe goes into it and then measure the distance of the pipe to the bottom of the tank. That will give you how far the downpipe is sticking into the tank.