Dometic 310 toilet valve, sealed or repairable?

I think they all seem to dribble a little after pumping water in. The real test is to mark the level after it sits for 5 minutes and then check it after 15 minutes. If it rises replace, if it's the same it's normal.

They are a little pricey for what they are, but it never hurts to have a spare. They freeze easily. I bet I've replaced about 1 to three a year for members in our RV club after winter storage. In that case though they crack and leak outside the toilet.

dougrainer wrote:
Replace is the only option. They should NOT leak. Period.

Replacement Valve, Dometic Part #385311641.

The OP is free to do whatever he sees fit. Somehow this became about me.

2oldman wrote:

Old-Biscuit wrote:
SO before bedtime you go out turn it off??

I'm never on shore water. There's a pump switch.

My valve leaks such a tiny amount and for a minute, maybe. Jees, you guys act like this is a gusher. In my judgment such a tiny bit of leakage is not worth the trouble to replace. Your judgment obviously is not the same.

I also use on-board pump only and turn it off at night, turn it off when I go outside, turn it off when we leave

$6000 in repairs/costs from a 'leak'
Water IS a killer when it comes to RVs.
Ignore it----or simply fix it.
Your choice.

RVers do a lot of things they shouldn't do. And things they don't need to do. And don't do things they should do. And doobie doobie doo.

2oldman wrote:

dougrainer wrote:

2oldman wrote:
Minedoes that, a little bit. Doesn't seem to be a big problem.

Said the RV'er that came back and found his unit flooded because the small leak became a larger one and the toilet overflowed:B Doug

You should never leave your water on when leaving the RV for a length of time.

Said the Rv'er that NEVER turns the water off:B Doug

I am NOT talking about you. Just what MOST RV'ers do.

Old-Biscuit wrote:
SO before bedtime you go out turn it off??

I'm never on shore water. There's a pump switch.

My valve leaks such a tiny amount and for a minute, maybe. Jees, you guys act like this is a gusher. In my judgment such a tiny bit of leakage is not worth the trouble to replace. Your judgment obviously is not the same.

2oldman wrote:

dougrainer wrote:

2oldman wrote:
Minedoes that, a little bit. Doesn't seem to be a big problem.

Said the RV'er that came back and found his unit flooded because the small leak became a larger one and the toilet overflowed:B Doug

You should never leave your water on when leaving the RV for a length of time.

SO before bedtime you go out turn it off??

dougrainer wrote:

2oldman wrote:
Minedoes that, a little bit. Doesn't seem to be a big problem.

Said the RV'er that came back and found his unit flooded because the small leak became a larger one and the toilet overflowed:B Doug

You should never leave your water on when leaving the RV for a length of time.

2oldman wrote:
Mine does that, a little bit. Doesn't seem to be a big problem.

Said the RV'er that came back and found his unit flooded because the small leak became a larger one and the toilet overflowed:B Doug