Fishfnatic
Well-known member
Does anybody know if there is a grey water tank overflow valve on 310 rl?
I had full tank and gray water came out of underbelly . This is what I was told. I have an email from alliance and this is the quote “For the tanks, if they are overfilled, they absolutely will leak as there is an overflow valve on the top of the tank for this purpose”. Just FYII don't think so. Once the grey tanks get full, they will start to back up into the drains (ie..in shower will stay full)
So, personally, I would press harder on this response. For sure the freshwater tank has an overflow pipe. That overflow pipe extends down out of the underbelly for a purpose. That purpose being, to prevent water from collecting within the underbelly. If they have included overflows for gray tanks, then why would they not take the same strategy and allow that gray water to vent below the underbelly? (Water on the ground either way)
i emailed the question about the grey tank venting into belly and not out like freshwater. Still haven’t heard back from them. Also if it leaks out when overfill, would it do the same with partial tank full when traveling because of sloshing?So, personally, I would press harder on this response. For sure the freshwater tank has an overflow pipe. That overflow pipe extends down out of the underbelly for a purpose. That purpose being, to prevent water from collecting within the underbelly. If they have included overflows for gray tanks, then why would they not take the same strategy and allow that gray water to vent below the underbelly? (Water on the ground either way)
Additionally, this forum just recently helped one of our valued members work through a gray tank that would not drain. And the observations were a Kitchen sink that won't drain and water backing up within the vent pipe when looking down inside it from the roof. There was no mention of water in the underbelly.
I would ask for additional proof and challenge them why they would vent fresh to the ground and vent gray to the underbelly. I would also be requesting that the vents be extended outside of the underbelly as a warranty claim if this is truly the case and some sort of running change was made to take this approach.
Why in the world would they risk overflow to the underbelly and allow saturation of things enclosed inside of there. (Ducts work, insulation, wiring etc.
Also, why would they vent gray tank odor to the underbelly? The overflow would have to be equipped with some sort of low psi check valve to prevent odor venting into the cavity.
Something just doesn't ring true hear!
Maybe @Jim Beletti could reach out directly to the factory for further comment.
Perhaps this would be another opportunity for @Bill Martin to do a ”Whatcha know Wednesday short” on this topic.
Just offering my "The World According to Bryan Theory" and applying basic logic here.
If my thinking is wrong and they do vent gray overflow to under the under belly, I humbly stand corrected.
I would also ask that they consider making the vent extend below as the next customer driven feature!
Best regards to all!