Black Tank Flush, Ideas Please

[Gene Chaltry]

I am having trouble trying to get water through the black tank flush. It started to go through and then quit. I could not get any water through. Tried removing the screen and putting water in, no luck. Had 60#'s of water pressure. Any ideas will be appreciated. Thank You in advance.

[DHenry]

There is a pressure relief valve probably located under your bathroom sink that is no doubt defective. I had the same problems you described. I took the valve out, pulled the water line down into the basement and installed a in-line ball valve. Now when I flush I turn on the water, then the valve. When I am done flushing I turn off the valve first then the water. You can replace the relief valve with a new on but if it ever has to relieve itself it will do it under your sink.

[sreigle]

Doug probably nailed it but if bychance that isn't it, check at the inlet. Pull out the screen and there is a one-way checkvalve with a little white button (on ours anyhow). If the checkvalve malfunctions it can cause this problem. But Doug's suggestion is the most likely culprit.

Doug, do you have a picture of that valve you installed? Also, before you get away from the rally I'd like to see yours.

[DHenry]

Steve, I do have a picture but it is to large for the forum. If you would like a copy of it I will print it out for you. Please remind me to show it to you today at the show and tell.

[Gene Chaltry]

DHenry can you tell me where this pressure relief valve is. I sure can't locate it. Thanks for all advice.

[sreigle]

Doug, if you want to email it to me I can reduce it for you. I'm not sure you have the internet signal from our 3 rally folks with routers over there? If not, bring your laptop over here and we can reduce it or whatever.

[DHenry]

Gene in my 3670 it was located under my sink vanity in the bedroom. Maybe someone who has a 3400 knows where it is located.

Steve, I emailed you the picture.

[kwbosch]

quote:Originally posted by Gene Chaltry

DHenry can you tell me where this pressure relief valve is. I sure can't locate it. Thanks for all advice.

Gene,
On my '05 3400 it was behind a plastic panel in the upper pantry cabinet to the right of the frige. It was located down about a foot and required a mirror and flashlight to see. The (old world craftsman) that cut the panel opening missed it by a mile.

Ken

[DHenry]

Gene, here is a picture of the valve I installed in the storage compartment.

[Gene Chaltry]

Ken, Thank you. That is where it is. I was wondering what in the heck that was. What a devil of a place to get at.

Doug, thanks again. That is quite a setup you have there.