Waterless valves for sink

[fmichaels]

Are waterless valves worth the cost to replace p-traps to stop gray tank smells?

[mike837go]

Probably not.


As long as one uses the RV a couple of times during the season and throws RV Antifreeze into the traps for the winter, all is fine.


Why spend extra on a rubber flap that'll dry out and leak?


The P-trap uses constantly replaced water to form a gas-tight seal. Why mess with what works very well, isn't prone to failure and will last the life of the rest of the RV with nearly no maintenance?

[Tunce the traveler]

Originally Posted by mike837go

probably not.


As long as one uses the rv a couple of times during the season and throws rv antifreeze into the traps for the winter, all is fine.


Why spend extra on a rubber flap that'll dry out and leak?


The p-trap uses constantly replaced water to form a gas-tight seal. Why mess with what works very well, isn't prone to failure and will last the life of the rest of the rv with nearly no maintenance?

x 2

[Camper_bob]

Originally Posted by mike837go

Probably not.


As long as one uses the RV a couple of times during the season and throws RV Antifreeze into the traps for the winter, all is fine.


Why spend extra on a rubber flap that'll dry out and leak?


The P-trap uses constantly replaced water to form a gas-tight seal. Why mess with what works very well, isn't prone to failure and will last the life of the rest of the RV with nearly no maintenance?

+1

[Lady Fitzgerald]

Has anyone had any actual experience with those drain valves?

[fmichaels]

That would be my next question. I know about keeping the p-traps full (and do) but I have still had enough occasional issues when I knew they were full that makes me want to try this especially for the sink. This seems more of a full proof fix than p-traps.

[need-a-vacation]

Originally Posted by Lady Fitzgerald

Has anyone had any actual experience with those drain valves?

With the waterless trap? In what aspect? We have, but only since July '15 when we bought our 32. There is one on the outdoor kitchen sink drain. Wasn't sure how it worked until I looked it up. Do have a small concern it may not last long term (mainly because I have limited experience with them), but only time will tell.

[fmichaels]

Thanks. The cost is about $35. worth a try. Clearing the trailer of that smell when it hits can take time and although I am not concerned with the issue it is always an inconvenience especially since we've had it occur unexpectedly from time to time. Thanks

[wanderlust]

The Hepvo waterless trap gets pretty good reviews, and it also creates more space below sinks. I'm going to replace my P-traps this winter.