Welcome to RVForums.com

  • Register now and join the discussion
  • Friendliest RV Community on the web
  • Modern site for PC's, Phones, Tablets - no 3rd party apps required
  • Ask questions, help others, review campgrounds
  • Get the most out of the RV Lifestyle
  • Invite everyone to RVForums.com and let's have fun
  • Commercial/Vendors welcome

Dometic toilet

Welcome to RVForums.com

  • Register now and join the discussion
  • Modern secure site, no 3rd party apps required
  • Invite your friends and let's have fun
  • Commercial/Vendors welcome
  • Friendliest RV community on the web

Rver2020

RVF Newbee
Joined
May 5, 2025
Messages
3
Just bought a new dometic 300
Toilet late last year - used for a few months. This spring we noticed the seal leaks water in the toilet bowl, so we can’t keep water in it. Suggestions?
 
If the water/antifreeze was allowed to evaporate over the winter the seal probably dried out. Replacement seals are available on Amazon. U tube has some videos on how to change out the seal, about a 5 minute job. link:
replacing dometic 300 toilet seal - Bing
 
Before you take it apart and replace the seal, try this. Sometimes the ball gets out of round just a smidge and the seal doesn't seat properly. With a gloved hand, reach down and hold the ball while you also (gently) begin to flush (don't let the ball rotate with the flushing motion for just the beginning of the flushing motion.) Perhaps this will realign the seal. IF not, then proceed with seal replacement. Blessings
 

Latest posts

Latest resources

Back
Top