Reply
 
Thread Tools Display Modes
Old 04-25-2019, 10:07 AM   #1
Sunseeker 2400MBW
 
Join Date: May 2016
Location: Everywhere, USA
Posts: 550
Black tank valve leaking

After our last 2 drives we hook up the sewer hose as usual EXCEPT, lots of black water rushes out when the sewer cap is removed from the MH.
Is it unusual for this valve to leak? It doesn’t leak between empties when stationary. We check it before we pull the valve.
Has anyone experienced this? And fixed it?
Thank you for any help.
__________________
Full time 2016 Sunseeker 2400WS towing a 2018 Subaru Forester.
Nancyc7 is offline   Reply With Quote
Old 04-25-2019, 10:11 AM   #2
Senior Member
 
A32Deuce's Avatar
 
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 9,193
Could something be bumping the valve open or does it move easy enough for it to vibrate open a little? Mine is still tight for the past 7 years. Tight enough, I had to replace the handle cause I stripped the threads in the handle.
__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
A32Deuce is offline   Reply With Quote
Old 04-25-2019, 10:17 AM   #3
Usually Confused Member
 
emm-dee's Avatar
 
Join Date: Nov 2015
Location: Georgia
Posts: 3,259
Quick fix

https://www.amazon.com/Valterra-T58-...gateway&sr=8-5

Permanent fix

https://www.amazon.com/s?k=valterra+...nb_sb_ss_i_2_6
__________________
2018 Forester 3051S (aka Clyde)
2015 Wrangler Toad (aka Bonnie)

At some point during every day you suddenly realize nothing else productive is going to happen the rest of that day. For me, it usually occurs around 9 am.
emm-dee is offline   Reply With Quote
Old 04-25-2019, 10:24 AM   #4
Senior Member
 
Iwannacamp's Avatar
 
Join Date: Aug 2013
Posts: 7,610
I have no cable operated valves, but I have read where it isn't uncommon for "stuff" to get caught in the valve. I have heard of wood chips, plastic from tank cut out, and even stuff that got flushed. I have dropped stuff in the commode that I had to retrieve... maybe someone dropped an item and didn't know or report the loss. Ink pens, bobby pins/hair clips, etc...

I got an inspection camera for my cell phone/tablet for like $20 on Amazon that would do a great inspection job. It is like 17' long and pretty COOL. I am now authorized to perform laparoscopic surgery.

If you do this... Empty tanks, flush pretty good and drain well before using your scope.
__________________
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas
Iwannacamp is offline   Reply With Quote
Old 04-25-2019, 10:30 AM   #5
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 12,366
How much comes out?

I had two SOBs (some other brand) that would hold a quart or so in the black pipe between the valve (mounted near the tank) and the dump port. (near the side of the R/V)

You could let the tank port open for an hour after dumping and nothing more would run out. Close the valve, cap the port, move the R/V and then remove the cap again and about a quart would come out. I wound up using a dump port mounted valve as referenced in a prior post on those two units.
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck B&W Companion
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '17=30 '18=51 '19=58 '20=88
5picker is offline   Reply With Quote
Old 04-25-2019, 11:27 AM   #6
Senior Member
 
Join Date: Jun 2013
Posts: 781
Replacing the valves is easy if they're exposed, once the tank is empty and clean.
nayther is offline   Reply With Quote
Old 04-25-2019, 11:50 AM   #7
Sunseeker 2400MBW
 
Join Date: May 2016
Location: Everywhere, USA
Posts: 550
[QUOTE=emm-dee;2080377]Quick fix

https://www.amazon.com/Valterra-T58-...gateway&sr=8-5

We went to an RV store and bought this exact thing. They told us the seals could wear out or a piece of crud could be caught.
They also recommended a tank treatment which I never use, I do the Geo Method. They said the tank treatment helps the seals.
Thanks for everyone’s input. This forum is lifesaver.
I REALLY want a scope!
Nancyc7 is offline   Reply With Quote
Old 04-25-2019, 01:13 PM   #8
Senior Member
 
Join Date: Oct 2018
Posts: 151
Also colonoscopies!!!!!!!!!!!!!!!!!!!!!!
wanderer44 is offline   Reply With Quote
Old 04-25-2019, 01:37 PM   #9
Senior Member
 
DKRITTER's Avatar
 
Join Date: May 2014
Location: Haslet Texas
Posts: 774
We've had a twist on valve on our last 2 trailers and will always have one on.

It seems like there is a little stuff that over time migrates to the end of the pipe and when you open it it does as it's supposed to, pour out.

With the twist on you can plug everything in and then open the valve. Big thumbs up!
__________________
Former Owner of
2016 Cedar Creek 36 POS (My Last FR Product)
DKRITTER is offline   Reply With Quote
Old 04-25-2019, 01:52 PM   #10
Senior Member
 
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 2,867
Well, of course!

Quote:
Originally Posted by 5picker View Post
How much comes out?

I had two SOBs (some other brand) that would hold a quart or so in the black pipe between the valve (mounted near the tank) and the dump port. (near the side of the R/V)

You could let the tank port open for an hour after dumping and nothing more would run out. Close the valve, cap the port, move the R/V and then remove the cap again and about a quart would come out. I wound up using a dump port mounted valve as referenced in a prior post on those two units.
Well, of course! The outlet of the tank isn't on the bottom--there isn't enough ground clearance for that. It's on the side of the tank, maybe an inch up from the bottom. When you are level and drain the tank, that quart is still there on the bottom. Go around a few turns and it splashes up into the drain plumbing and runs downhill to the valve. You can't always find un-level ground at a dump station, in order to park with the valve-side low, although one of the dump sites at our regular campground is sloped this way.

I have the habit of connecting my drain hose at the far end first, then holding the near end under the outlet as I take off the cap which mitigates the problem without extra equipment.

Larry
Larry-NC is offline   Reply With Quote
Old 04-25-2019, 02:39 PM   #11
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 12,366
Quote:
Originally Posted by Larry-NC View Post
Well, of course! The outlet of the tank isn't on the bottom--there isn't enough ground clearance for that. It's on the side of the tank, maybe an inch up from the bottom. When you are level and drain the tank, that quart is still there on the bottom. Go around a few turns and it splashes up into the drain plumbing and runs downhill to the valve. You can't always find un-level ground at a dump station, in order to park with the valve-side low, although one of the dump sites at our regular campground is sloped this way.

I have the habit of connecting my drain hose at the far end first, then holding the near end under the outlet as I take off the cap which mitigates the problem without extra equipment.

Larry
Of course... you missed several important parts of my post.

I indicated the valve was near the tank, not at the side of the R/V.
I also indicated I CLOSED the valve before moving.
That, left some liquid in the pipe that didn't come out on draining but did so after moving.
Had NOTHING to do with what was still in the tank.
Geesh.

Quote:
Originally Posted by 5picker View Post
How much comes out?

I had two SOBs (some other brand) that would hold a quart or so in the black pipe between the valve (mounted near the tank) and the dump port. (near the side of the R/V)

You could let the tank port open for an hour after dumping and nothing more would run out. Close the valve, cap the port, move the R/V and then remove the cap again and about a quart would come out. I wound up using a dump port mounted valve as referenced in a prior post on those two units.
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck B&W Companion
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '17=30 '18=51 '19=58 '20=88
5picker is offline   Reply With Quote
Old 04-25-2019, 03:11 PM   #12
Junior Member
 
Join Date: Aug 2018
Posts: 7
Mine occasionally leaks a little too. I put a small plastic bucket under the cap before I remove it to catch any leakage. Usually only a few drops, but sometimes a cup or so of liquid. The bucket is easier to dump and rinse than cleaning a spill.f
Geoff Ralling is offline   Reply With Quote
Old 04-25-2019, 03:22 PM   #13
Senior Member
 
sfsgm's Avatar
 
Join Date: Feb 2015
Posts: 340
X2. I didn't have a leaky valve but I put this on as a backup just in case.
__________________
2016 Nike Take Down Wrestling Shoes
42 ft square Dollamur high school wrestling mat
sfsgm is offline   Reply With Quote
Old 04-25-2019, 03:51 PM   #14
Senior Member
 
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 2,867
Two valves?

Quote:
Originally Posted by 5picker View Post
Of course... you missed several important parts of my post.

I indicated the valve was near the tank, not at the side of the R/V.
I also indicated I CLOSED the valve before moving.
That, left some liquid in the pipe that didn't come out on draining but did so after moving.
Had NOTHING to do with what was still in the tank.
Geesh.
You had two valves on the tank?

Larry
Larry-NC is offline   Reply With Quote
Old 04-25-2019, 03:54 PM   #15
Junior Member
 
Join Date: Feb 2016
Posts: 20
Black tank valve leaking

Before you go too far the next time you empty and flush your black tank, when you detach the sewer line open the black valve a spray it down real good. You may have a piece of toile paper stuck in it causing it to leak. Good luck.
SweetOleBill is offline   Reply With Quote
Old 04-25-2019, 03:55 PM   #16
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 12,366
Quote:
Originally Posted by Larry-NC View Post
You had two valves on the tank?

Larry
Not originally... a valve at the tank and a CAP at the dump port. (Re-read the post)

I did though after I added the screw on dump port valve. (which I also mentioned previously)

But enough, we've derailed this thread far too much.
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck B&W Companion
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '17=30 '18=51 '19=58 '20=88
5picker is offline   Reply With Quote
Old 04-25-2019, 06:49 PM   #17
Senior Member
 
Join Date: Feb 2012
Location: Midland, MI
Posts: 900
We've had this happen twice. First time, on a TT, a cotton ball found its way into the toilet and got jammed into the valve seat. I know this because I removed the valve and found it. The 2nd time it happened was on our 5th wheel, where the valve was way harder to remove. A local RV shop sold me some valve cleaning goop to pour into the toilets, and, to my surprise, that worked. Must have been a piece of Jammed paper.

In my opinion, on a MH, if you go through the trouble of exposing the valve, I'd replace it not repair it.

Btw. I always carry the "quick fix" mentioned earlier.
__________________
Cathy & Jeff
Midland, Michigan
2020 Cedar Creek 34IK / 2019 Ram3500 CID
SimchaSabre is offline   Reply With Quote
Old 04-25-2019, 06:55 PM   #18
Senior Member
 
Join Date: Feb 2018
Location: TEXAS
Posts: 2,532
We use the Valterra valve also. It's a whole lot cheaper than paying someone to try to fix it.

One experience of having the black water gushing out when we removed the cap convinced us that the second valve was worth the cost.
__________________
2015 Dynamax REV 24TB class C
Reverse_snowbird is offline   Reply With Quote
Old 04-25-2019, 07:16 PM   #19
Usually Confused Member
 
emm-dee's Avatar
 
Join Date: Nov 2015
Location: Georgia
Posts: 3,259
My drain hose comes up through the floor so I have a clear elbow to hook up to. Since the elbow is downstream from the blade valve I can clearly see if there’s any leakage before removing the cap.
__________________
2018 Forester 3051S (aka Clyde)
2015 Wrangler Toad (aka Bonnie)

At some point during every day you suddenly realize nothing else productive is going to happen the rest of that day. For me, it usually occurs around 9 am.
emm-dee is offline   Reply With Quote
Old 04-25-2019, 07:33 PM   #20
Sunseeker 2400MBW
 
Join Date: May 2016
Location: Everywhere, USA
Posts: 550
“I have the habit of connecting my drain hose at the far end first, then holding the near end under the outlet as I take off the cap which mitigates the problem without extra equipment.”

My husband started doing this a few dumps ago, it had started having big drips when we took the cap off. Saved him, it would have been super disgusting otherwise.

Now I have this enzyme stuff, “Unique RV digest it”. don’t know if I should give up the Geo method. It’s hard to find water softener.
__________________
Full time 2016 Sunseeker 2400WS towing a 2018 Subaru Forester.
Nancyc7 is offline   Reply With Quote
Reply

Tags
black, black tank, leak, saunseeker, sunseeker, tank, valve

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 04:53 AM.