Help! Leak in Toilet

[Britt11]

Hi there! Hopefully I've chosen the correct forum category to ask this, and if not I'm sorry. I'm new here and in need of any help regarding a leak my toilet has sprung. I don't know anything about plumbing but after hours of googling the toilet (Dometic 310) and looking over diagrams, the leak is at where the line connects with the water valve (the line going from the water valve to the vaccuum breaker(?)- basically the waterline that leads from the water valve to the top of the toilet.) It's leaking constantly from that connection point whenever the toilet pedal is not engaged. Whenever the pedal is engaged it stops leaking and flushes like it should, just to continue leaking when you let back off of the pedal. I don't know if it's an issue with the water valve itself, or if it's where the clamp is on the connection or whatever else may be causing it or what I need to do to fix it.

Any and all possible help or guidance with this is beyond appreciated. I'm really at a loss here.


(found a diagram on Google images that actually led me to this site, I have circled in blue the area that I'm talking about where the leak is)

[MSHappyCampers]

Hi ! Welcome to IRV2! We're sure glad you joined us!

From your description of the problem, it seems to me that it would be the connection of the line to the water valve. I would try a new compression-type clamp and see what happens.

Good luck, happy trails, and God bless!

[Old-Biscuit]

You have 2 issues

Leak at that fitting....hose clamp needs tightening
Leak at that fitting when NOT flushing toilet.....water valve leaking thru
*There S/B no water on that side of water valve/line to Vacuum breaker UNLESS pedal is being pushed/flushing toilet

[Isaac-1]

Those fittings commonly crack after a freeze as people forget to blow them out with air when winterizing .

[Britt11]

Originally Posted by Old-Biscuit

You have 2 issues

Leak at that fitting....hose clamp needs tightening
Leak at that fitting when NOT flushing toilet.....water valve leaking thru
*There S/B no water on that side of water valve/line to Vacuum breaker UNLESS pedal is being pushed/flushing toilet

Thanks! That's what I was thinking since it was post valve, but wasn't positive. I appreciate you're help!

[Britt11]

Originally Posted by Isaac-1

Those fittings commonly crack after a freeze as people forget to blow them out with air when winterizing .

That makes sense since I'm located in TX and we got quite the winter storm this winter which was bizarre for our region. Usually there isn't a need to winterize 😄

[Britt11]

Originally Posted by MSHappyCampers

Hi ! Welcome to IRV2! We're sure glad you joined us!

From your description of the problem, it seems to me that it would be the connection of the line to the water valve. I would try a new compression-type clamp and see what happens.

Good luck, happy trails, and God bless!

Thank you!