Do You Carry A Replacement Flush Valve For My Thetford Toilet?

Updated 07/17/2025 | Published 07/12/2025

Question:

I have a Thetford 42071 toilet in my RV. I think its this same model Thetford Style II Low Profile. Im trying to figure out what seal kit I need to buy to replace the seal or ball valve. The toilet is not maintaining water in the bowl. Thanks

asked by: Joe

Expert Reply:

Hey Joe,

If your toilet is not maintaining water, it is most likely an issue with the flush valve seal. Which is not something that we carry as a replacement part for those Thetford units. You would need to replace that flush valve seal. I recommend reaching out to Thetford directly to get that replacement part.

What kind of trailer do you have that toilet in?

expert reply by: Nick S

Joe

7/17/2025

Thanks for the response, Nick! I got it figured out - I got the correct seal and found a video through the Thetford website explaining how to replace it. Easier than I thought. Thanks again!