Originally Posted by Trentsrv
I fill my FW tank and it comes out the overflow and continues to run out for a long time. i have scanned the forms and think it is siphoning the water back out of the tank. we have only filled it 3 times. last time we filled it, only lasted 3 days and only did dishes, toilet and hand washing. its a 46 gal tank and we should be able to at least have a conservative shower. I'm going to buy a shut off valve to try out and verify the level after it stops draining from the overflow. i will let you all know my findings if any one else has the same issue. any suggestions are welcome. thanks
Ps you most likely have 40 gallon or 36 gallon as they count the water heater as fw capacity depends on if you have a 6 gallon or a 10 gallon wh.
In past upon first fillup of my 2005 flagstaff I filled it till it gushed out of filler or over flow vent and went camping only to find out I was almost empty the next day.
Two things happened .
First I forgot to fill hw tank -6 gallons .
Second I found out that I never had the fw tank full to begin with.
I then left plenty of time to fill fw tank by just slowly trickling in water vs opening up water hose to run full bore.
What happens is the water coming in can flow faster thrn the air coming out and when it starts burbing out water you think its full.
This may or may not be your case, I just wanted to give ya a heads up.