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Question about flow out of black tank

Ox262

Member
I recently purchased a Delta 262RB. We camped for a week and filled the black tank about 2/3 full. When I went to dump the tank the flow was very slow, it didn't gush out like my gray tanks. I emptied it but didn't get the flood of liquid like my other tanks. I'm not sure if there's some blockage or that's the normal flow from the black tank. Also, we don't put any solids in the black tank. I had a similar experience with our Class C and there was a plastic disc left in the tank from the manufacturer.

Anyone have a similar experience with their Delta black tank drain, is it normal? Thanks.
 

BryanValRox

Elite Member
I recently purchased a Delta 262RB. We camped for a week and filled the black tank about 2/3 full. When I went to dump the tank the flow was very slow, it didn't gush out like my gray tanks. I emptied it but didn't get the flood of liquid like my other tanks. I'm not sure if there's some blockage or that's the normal flow from the black tank. Also, we don't put any solids in the black tank. I had a similar experience with our Class C and there was a plastic disc left in the tank from the manufacturer.

Anyone have a similar experience with their Delta black tank drain, is it normal? Thanks.
Hi folks, this would not be normal. You should get a forceful flow.
Possible causes would be a restriction at the tank outlet (plastic cut out, we found one in our 310 RL), A tank gate valve that isn’t opening all the way, restricted plumbing (pipe or fittings) or even an issue with tank venting.
You can determine venting issues quickly by stepping on the toilet flush valve when draining your tanks, if flow increases you have a venting issue. Other inspection techniques would be to get a cheap inspection camera or call in a plumber equipped with a video snake to take a peak up or down thru the plumbing.
 

Ox262

Member
Good ideas and it's not a forceful flow. The trailer is being serviced now by the dealer but apparently they can't fill the black tank and check the flow by opening the valve. They need Alliance's approval to do this and it's been there 10 days now. I've argued with both Alliance service and the dealer but they are at a dead-stop. Frozen. Alliance said they need 48 hours to approve the troubleshooting. Simple, fill the tank halfway, pull the valve, monitor the flow. It's a ridiculously slow process to get this serviced.
 

Lantley

Prominent Member
Good ideas and it's not a forceful flow. The trailer is being serviced now by the dealer but apparently they can't fill the black tank and check the flow by opening the valve. They need Alliance's approval to do this and it's been there 10 days now. I've argued with both Alliance service and the dealer but they are at a dead-stop. Frozen. Alliance said they need 48 hours to approve the troubleshooting. Simple, fill the tank halfway, pull the valve, monitor the flow. It's a ridiculously slow process to get this serviced.
Not to throw salt on the wound but this is essentially what's wrong with the RV warranty program with Alliance and all RV brands.
It's a bit of a charade. It's so cumbersome to get warranty service, that eventually you become like me and don't even bother.
Your story is all to common. The idea is to frustrate the buyers and wear them down to avoid warranty claims.
Warranty in my book is only good for catastrophic major issues.
In your shoes, I would have back flushed the tank a few times with my Flush King.
If things were still not proper, I would hire someone to camera the tank, if I was unable to do it myself.
10 days of waiting is a deal breaker for me.
 

Ox262

Member
I totally agree Lantley. It's ironic how Alliance touts it's great customer service and allies with it's customers. And then this. There should be no delay here. The dealer knows the problem, they should move with speed, fix it, and get the "clearance" later. When I had this problem with my Jayco under warranty, they diagnosed the problem, fixed it and had it back to me within two weeks. There was no back and forth between me, the dealer or Jayco. They just fixed it.

Anyway, I'm following up with the dealer today. We'll see who's my "ally".
 

Bozo

Prominent Member
Not to throw salt on the wound but this is essentially what's wrong with the RV warranty program with Alliance and all RV brands.
It's a bit of a charade. It's so cumbersome to get warranty service, that eventually you become like me and don't even bother.
Your story is all to common. The idea is to frustrate the buyers and wear them down to avoid warranty claims.
Warranty in my book is only good for catastrophic major issues.
In your shoes, I would have back flushed the tank a few times with my Flush King.
If things were still not proper, I would hire someone to camera the tank, if I was unable to do it myself.
10 days of waiting is a deal breaker for me.
You and I think alike on warranty. RV industry is a freaking joke and you are 100% correct.
 

2 Allies

Well-known member
I totally agree Lantley. It's ironic how Alliance touts it's great customer service and allies with it's customers. And then this. There should be no delay here. The dealer knows the problem, they should move with speed, fix it, and get the "clearance" later. When I had this problem with my Jayco under warranty, they diagnosed the problem, fixed it and had it back to me within two weeks. There was no back and forth between me, the dealer or Jayco. They just fixed it.

Anyway, I'm following up with the dealer today. We'll see who's my "ally".
Ox262,

Sorry you are having issues getting your unit repaired. Hopefully you have emailed service@alliancerv.com and moved through the process. We have found that following up with Alliance after presenting to the dealership moved things along. Our experience with Alliance has been awesome, hopefully your issue will be corrected quickly.

Good luck,






ou
 
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