Dometic toilet

[Rver2020]

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?

 

[wiscampsin]

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

 

[Scooterfan]

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

 

[AbdRahim]

You can also try cleaning the seal then using waterproofgrease on it. There is also a toilet seal lubricant you can use on a regular basis to preserve the seal. And yes, never let it dry out.

 

[MichiganRVer]

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?

Similar issue. Did you ever find a solution? The guys at rvtoiletparts.com suggested a new seal, but hoping to avoid the work involved in that....