Community Forums

Samflhomes · 06-14-2010, 11:47 PM

I have a 2004 Seabreeze 8321 LX WH22

A few days ago the tank filled up to overflow out the bowl as a result of a stuck foot valve.

Now after dumping the black water tank I hooked up the hose to flush out the tank. I then see water pouring out behind the rear tire on passenger side.

I open the bay door and see that there is a black cover over a tank that is under the floor. Unable to remove cover at this time but I assume this is the black water tank as it is under the bathroom.

My only assumption is that the overfilling of the tank may have caused the "jets" that feed the fresh water to flush the tank may have been partially pushed out of the tank causing the water to leak. I am getting a lot of water into the tank as well so the jets still work but a lot is leaking onto the ground through the bay.

Is it possible that the pressure of the overfill caused the jets to become loose? Does anyone know anything about fixing this? Looks difficult to access the perimeter of the tank.

Sam

RV Wizard · 06-15-2010, 02:48 AM

If the tank does not leak when filled via the toilet but you get leaking when using the tank wash out system, you probably have a stuck vacuum breaker allowing water to escape through the vent.

Samflhomes · 06-17-2010, 04:36 PM

To clarify my leak while flusing the black tank. I am getting water into the black tank but also some spilling on the ground from the tank area.

I AM NOT filling the tank. I do close the valve for about two or three minutes and then dump the water.

Can a stuck check valve cause this leak or is it more likely that there is a dislodged hose to one of the jets?

This problem only showed up on the most recent flush. The only thing that happened since the last flush is that we had an accidental over flow due to a stuck foot valve. Something about that overflow caused the fresh water flush system to start leaking.

RV Wizard · 06-19-2010, 03:41 AM

One thing I have learned in this industry; anything is possible. You could have a line come off one of the jet nozzles, a hole in a line, or bad vent. You will have to access the area and look while washing out the tank to find and repair.

Richard S. · 06-19-2010, 04:54 AM

If the vacuum breaker or the check valve has malfunctioned water will drain down to on top of your black tank and run in to your storage compartment and the on the ground. Your check valve / breaker is located to the left of your toilet and behind a panel attached with 4 screws. National RV use a flush out system manufactured by SWAN IND. Model # SFS 105-C Link below.

http://www.swanindustries.com/catalog/flushing.htm

danf7 · 06-19-2010, 05:13 AM

Although I have a different rig, I had a simular problem. Started getting leaks when I did a tank flush. My vacume breaker had a crack init. ( It's only plastic!

) Easy fix though and Tiffin sent me one for free!

Dan

Samflhomes · 07-02-2010, 02:24 PM

Richard

I finally tore the wall out to look at check valve. Yup it leaks. So I puhed the plunger down several times to see if it cleared out any debris and resealed itself.

Looks like it works now but I don't trust it. Has anyone repaired a check valve like this and been successful? It seems that the water no longer comes out the top of the check valve but I wonder if it will reoccur after I seal every thing back up

It is a Swan Indutries 1/2 inch "Liako" Model

Samflhomes · 07-02-2010, 02:34 PM

I called the part a "Check valve" when I go to the swan industries web site it appears that what I need is a "Vacuum Breaker" part UV101 because that is where the wate rwas coming over the top of this part and draining into the storage bin. Again, I think by manipulating the plunger It now seals whrn the water is on but not sure why or how long that will last.

This problem began when I overfilled my black tank so it may have been "debris" forced up the flush out "Jet" into the vacuum breaker.

Opinions appreciated

Martind4 · 07-02-2010, 02:38 PM

One thing I've learned over the years is that sometimes my "repairs" don't last and I have to go back in again. I think I'd replace the vacuum breaker with a new one and sleep much better.

TandW · 07-02-2010, 03:56 PM

And what does this troublesome little untrustworthy device do to enhance the RV quality of life?

Martind4 · 07-02-2010, 06:44 PM

Under certain conditions (low or no water pressure, full sewage tank, and a full moon) the sewage could be siphoned into the flushing hose and contaminate the water source. Most municipalities require vacuum breakers or backflow preventers on outside hose faucets to eliminate this problem.

Another reason to sanitize the water spigot before hooking up your hose, the previous camper might have removed their vacuum breaker and conditions were right to contaminate the flushing hose all the way to the faucet.