Galley gray tank size of the QBOk?

[Pbalmer65]

After many trips I have found the galley tank filling quick. Either it's not draining 100% or it's a small holding tank.

[QCCowboy]

Should be 42 gallon (I think). Is it actually filling up or just the sensors are showing full?

[ependydad]

It's 42 gallons. They had a stack of them at the factory and they were all identically sized:



As a test, you could take a 5-gallon bucket and fill it 8 times. Then dump it into 5 gallon buckets. See if it works out.

[Pbalmer65]

After a few dish washing it's full to not drain. I do the dishes so I wash in one and only use water when rinsing getting the most of a gallon of water. It's not the gauges that tell me that it is full it's the water in the sink.


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[MillerTime]

This is strange.

I may only dump my kitchen tank once a weekend and its usually never even up to 2/3rds, just want to dump before I leave the trailer for the week.

[MillerTime]

I wonder if its a vent issue. Gary said to leave our OK valve open since we don't have a vent right now to it. He said if the tank was full it would have a problem draining since it didn't have a vent.
Just spit ballin'

[Pbalmer65]

Originally Posted by MillerTime

I wonder if its a vent issue. Gary said to leave our OK valve open since we don't have a vent right now to it. He said if the tank was full it would have a problem draining since it didn't have a vent.
Just spit ballin'

Now that is a strong possibility. Would it use the sink as a vent when not full causing it to drain the p trap?

[MillerTime]

I dont think it would drain the p trap but im not sure, I haven't tried ours to see.
I figure it might be like an unvented gas jug, but maybe the p trap keeps it from glugging......I dont know.
Maybe a plumber would know.

[TURBS]

I wonder if the vent pipe from the roof slid down to far in the tank or is bottomed out?


TURBS

"SABRE OWNERS UNITED"

[QCCowboy]

One quick thing to check for vents would be to get on the roof and just make sure it is open and not clogged at the top. You can always stick a hose down the vent from the top and see if it gets stuck or appears to keep going.