Should Sealant Be Used On Valterra T05-0782 RV Toilet Floor Flange

Updated 07/28/2021 | Published 07/27/2021

Question:

Do I need to use any kind of sealant on the threads of my replacement toilet flange?

asked by: JOHN M

Helpful Expert Reply:

According to Valterra, you should use a non-hardening sealant safe for ABS plastic. Don't use standard pipe dope or teflon tape as the pipe dope will harden over time which can cause leaking. Teflon tape acts as a lubricant, not a sealant. The danger of using that with ABS pipe is that it can cause the installer to over torque the fitting which causes the pipe or fitting to deform which would then very likely leak.

expert reply by: Mike L