Grey overflow

[nickrez]

I have a 2015 mini lite 2306.

While pulling out of my campsite on a fairly steep hill I stopped momentarily to check things out and noticed a steady drip from the upper half of the grey tank. The tank was 2/3 full when level.

I'm wondering if there is an overflow on the top of the tank and the incline forced some out? Or should I investigate further for a leak?

Thank you for input.

[vinmaker]

I do not think there should be any water leaking out when you climb a hill. I am thinking you should look for a leak.

Vin.

[nickrez]

It's going in for service tomorrow for a leak around the bathroom vent fan so I'll be asking about the grey tank as well.

I'll post my results for anyone else coming across a similar issue.

Thanks vin

[kinma13]

Ur gray tank shouldn't have an overflow cause if it did why have a holding tank at all. Check for a leak in the plumbing or tank it self.

[nickrez]

Just picked up my trailer from service. Had the bathroom vent fan sealed under warranty. The technician noted that the factory neglected to install any sealant by the fan bracket. Caused leaking and some minor ceiling trim damage.

About the grey tank:
Tech informed me there is an overflow at the top of the grey tank. I was surprised.

It's an easy explanation for the dripping I saw. I hope it is the case.

[kinma13]

Wonder why have a gray tank then. Cause if you fill it it will just flow out n on the ground so it never fills?? Why just done use one and let it flow on the ground?? Lol

[nickrez]

I suppose it's to prevent accidental overflow into the trailer? Like the fresh tank overflow.

[OldCoot]

Never heard of a grey water overflow. I think the tech was blowing smoke!

[nickrez]

It's certainly possible the tech was blowing smoke, but why?

In any case, I'm planning to somehow confirm.

[OldCoot]

To keep from having to find the leak.

[kinma13]

Agree with OC

[nickrez]

Well I submitted an inquiry to FR directly. I'm curious to find out

[vinmaker]

Omg. I want one of those tanks. A grey tank that never fills up is a great invention.

Wonder if I could just core a hole into mine as a DIY overflow project. lol.

Vin.

[mmcbride56]

Originally Posted by nickrez

Well I submitted an inquiry to FR directly. I'm curious to find out

Did you ever get a response from FR about the gray tank overflow?

I seem to be having the same issue with my 2017 Sportscoach.

Wondering if anyone has tried to attach a drain hose from the overflow to the bottom of the coach rather than just filling up the basement with water.

When it first happened, I thought the fresh water tank was leaking, confirmed later that it was the gray tank overflow. Stupid thing just empties right into the basement area where the city water hookup and waste gates are located. The ends up on top of the fresh water tank (top indented) located below the gray and black tanks. When you leave your site, the water ends up poring out of the metal frame and looks real bad.

I have since learned not to wait until the monitor says "full" as by then its too late. I now drain the gray water at two-thirds full and haven't had any issue since.

Note: the gray water did not back-up into the shower as some other threads suggest is suppose to happen. I think the overflow is on top of the gray tank and is not part of the vent pipe system.

[Dano1955]

As I stated on your thread here http://www.forestriverforums.com/for...ix-138776.html

I don't think you have an overflow on gray/black tanks. If they get too full they should be backing up into galley, bath or toidy. RV parks and national/state parks would have a fit if unattentive or careless campers let those tanks leak out onto their ground.

I think there is a different problem, maybe the tank is cracked or the vent/drains into the tank?

Something is not kosher