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09-18-2020, 10:15 AM
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#1
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Member
Join Date: Nov 2016
Location: Carthage
Posts: 47
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Waste tank drain issue
Recently when I go to drain my tanks and take the cap off I get about a half gallon of wastewater come out. Both levers are pushed in all the way still happens. We have never put solid waste in the black tank and no one else has owned the trailer. Never have used the black tank flush because no solids in the tank. Camper will soon be four years old.Any suggestions?
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09-18-2020, 10:21 AM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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If your sure your valves are closed and they are leaking, then you probably need to replace the seals. The seals are on each side of the blade and replacements are readily available. You just need to know what brand and size.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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09-18-2020, 05:23 PM
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#3
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Senior Member
Join Date: Aug 2013
Location: Tucson
Posts: 822
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Even though you haven't put solids in your black tank, it is possible there might be some minor materials from the initial construction inside the tank. On the other hand, a "1/2 gallon" of leakage is not that unusual. If the unit sits unused for extended periods, the seals may just let that much by. As Chuck points out, the valve seals themselves are cheap and easy to replace - the problem is GETTING to them can be a major project. You will either have to cut access holes in your underbelly coroplast, or remove a significant portion of that underbelly to access the valves. Before I did that, I'd try the following: - Thoroughly flush the system. Nearly fill your tanks, hook up the black tank flush system, open the tank dump valve, turn on the black flush, and let it run. You want to try to "flood" that disposal pipe with as much water as possible.
- Then, install a "last chance" valve just ahead of the cap on your 3" dump line. You can either cut the existing line and plumb in a new 3" valve, or use a Valterra twist lock type valve, add it to the end of your pipe, then the cap. The idea with this valve is that any leakage from either tank valve will still be contained when you remove the cap. This is useful for more than just leaking tank valves (like the time I forgot to close the tank valve, and subsequently pulled the cap off and dumped the entire black tank on myself and the concrete around the dump station. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I think you may find that a small amount of "leakage" by on the tank valves is really not a big issue. JMHO
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09-18-2020, 09:30 PM
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#4
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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I still have a hard time understanding why some folks buy a rv then don't use the toilet (some don't use the shower either) as it was designed to be used, save money & buy a pop-up or a tent.
I paid for a rv so I'd have all the conveniences of home & didn't have to go elsewhere to do my business. Curious do they use the facilities at home, go elsewhere or have an outhouse.
I understand it's a sh###y job, probably the worst part of rving, but if careful & pay attention it's not that bad & I guarantee everyone has the same bodily function.
As to the OP, some rvs can have a couple feet of 3" piping after the valves with twist/turns that can hold liquid then while traveling it works to the cap.
Pickup a cap with water hose attachment on it & remove that small cap over the open hose before removing the 3" cap, lot smaller stream to deal with.
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-19-2020, 03:37 AM
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#5
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Senior Member
Join Date: Aug 2019
Location: Clinton
Posts: 184
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Same problem
I had the same problem with excess liquid when removing the sewer cap from our new Alpine. Purchased a twist on waste valve for the sewer outlet and then attached cap and viola no more leakage when removing cap. Simple solution.
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09-19-2020, 05:52 AM
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#6
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Senior Member
Join Date: Oct 2014
Location: Germantown, TN
Posts: 6,333
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Steve, you have gotten some good advice from knowledgeable folks. Now let's have a little fun with this. You made claim that your commode and black tank are still 'turd virgins.' (I just couldn't think of proper terminology) I'm guessing in the four years use of the RV, and literally hundreds of walks to the park bathrooms you have built up what extra worth in your RV resale? Are you actually going to put in the Ebay ad that your commode is....well, still a virgin? What about the sink? The Mattress? Water heater?
Yes, I'm just having a little fun at your expense. Feel free to send a little retort back at me. In the meantime, buy the endcap or the valve and don't sweat the small stuff.
__________________
Jim in Memphis, Wife of 51 years is Brenda
2019 F450 6.7 Powerstroke
2018 Mobile Suites 40RSSA
2021 40' Jayco Eagle
2001 Road king w/matching Harley sidecar
2021 Yamaha X2 Wolverine 1000
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09-19-2020, 07:14 AM
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#7
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Junior Member
Join Date: Sep 2020
Location: Snohomish
Posts: 13
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"like the time I forgot to close the tank valve, and subsequently pulled the cap off and dumped the entire black tank on myself and the concrete around the dump station. "
I "tried" to do that yesterday. Luckily I have the garden hose connection for gray water release on the cap, so was able to let out a few gallons of liquid first so I didn't have a gusher.
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09-19-2020, 07:53 AM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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I'm a firm believer in the "belt AND suspenders" insurance when it comes to black tank fittings....
I have a "terminal valve" and a cap with the 3/4 inch garden hose fitting....
That way, even if the "terminal valve leaks, there's only 1" of space beyond the valve and a small cap to remove, not a 3" gully washer amount of outlet to deal with ...
As for "3 or 4 year old trailers with virgin black tanks".... That's a "almost guaranteed way to have dried out valve seals"..... Once they're dried and the valve blade is moved over the brittle rubber seals, it's almost certain that you'll be replacing the seals, not from use, but from dry, brittle rubber being mechanically torn by the valve blade as it pulls its way over the brittle rubber.....
Bottom line: It's very likely that using the toilet prolongs its life and "keeping it virgin" makes for early failure...
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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09-19-2020, 08:07 AM
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#9
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Senior Member
Join Date: Jul 2014
Location: Hemlock
Posts: 816
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I am guessing what the OP means is no poop in the tank. It has had urine and paper. The seals should not be dried out due to not being used. May still be a seal issue but I think some have misunderstood the post.
__________________
R.J. and Ginger
2019 Ram 3500 6.7 HO, Aisin Trans 3:73
Reese Goosebox
2019 Sandpiper 379FLOK
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09-19-2020, 08:33 AM
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#10
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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Quote:
Originally Posted by tech740
I am guessing what the OP means is no poop in the tank. It has had urine and paper. The seals should not be dried out due to not being used. May still be a seal issue but I think some have misunderstood the post.
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I've also talked to a few folks that only use the toilet for #1 at night, never #2 or paper in the toilet, & go to the parks facilities during the day.
NOPE! Not this guy!
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-19-2020, 10:22 AM
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#11
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Senior Member
Join Date: Jul 2014
Location: Hemlock
Posts: 816
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Quote:
Originally Posted by travelin texans
I've also talked to a few folks that only use the toilet for #1 at night, never #2 or paper in the toilet, & go to the parks facilities during the day.
NOPE! Not this guy!
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I agree, we use ours for everything it was made for. We check things like knee room or wipe and lean room to be more specific when it comes to the bathroom. I just thought some of the replies were geared towards the tank never being used at all.
__________________
R.J. and Ginger
2019 Ram 3500 6.7 HO, Aisin Trans 3:73
Reese Goosebox
2019 Sandpiper 379FLOK
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09-19-2020, 12:05 PM
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#12
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Senior Member
Join Date: Nov 2019
Location: Arundel
Posts: 289
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We know a couple who now have their 10 year old 5th wheel up for sale and think that's a strong selling point. From what I hear, most of the "lookers" have looked at them like they're out of their mind. "Turd virgins", a new catch phrase!
__________________
Jim
2018 Cougar 32RLI
Hercules H-901 tires
CRE3000 w/wet bolts
2021 F-350 4x4 7.3L Godzilla Crew Cab
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09-19-2020, 12:24 PM
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#13
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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So now we have four definitions for "TV" ...
TV = Tow Vehicle
TV = Television
TV = Turd Virgin
TV = Toilet Virgin
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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09-19-2020, 04:25 PM
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#14
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,757
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Quote:
Originally Posted by Maineiacs
We know a couple who now have their 10 year old 5th wheel up for sale and think that's a strong selling point. From what I hear, most of the "lookers" have looked at them like they're out of their mind. "Turd virgins", a new catch phrase!
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To me, if you want to buy a collectable or museum piece I’d look just about anywhere other than an RV dealership. I didn’t see a “turd virgin” line item in the NADA Guide or Kelly’s Blue Book.
What’s that condition add, $5?
__________________
Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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10-01-2020, 07:49 AM
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#15
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Senior Member
Join Date: Sep 2019
Location: O'Fallon
Posts: 209
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John,
Abbreviations, what is DW, Designated Wife? I’ve been racking my little grey cells since I’ve joined this forum to figure this abbreviation out. I haven’t seen this used on other forums, so just wondering.
Sorry for going off subject ...
__________________
Dan
2012 Keystone Raptor 395LEV
2021 Ford F-350 King Ranch DRW 6.7 Diesel
'09 Harley CVO Road Glide
'76 Harley FLH Shovelhead
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10-01-2020, 07:50 AM
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#16
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Junior Member
Join Date: Mar 2019
Location: Fort Walton Beach
Posts: 4
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Turd virgin?....unlikely!
If your rig has spent any time in the shop, it may not be a turd virgin anymore. I've known several owners who found the techs had "christened" the facilities while in the shop. In many cases, it's much closer (and cleaner) than the shop restroom.
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10-01-2020, 07:58 AM
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#17
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Junior Member
Join Date: Sep 2020
Location: Snohomish
Posts: 13
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DEAR Wife, of course!
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10-01-2020, 08:23 AM
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#18
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Senior Member
Join Date: Aug 2013
Location: Tucson
Posts: 822
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Quote:
Originally Posted by Dan Lockwood
John,
Abbreviations, what is DW, Designated Wife? I’ve been racking my little grey cells since I’ve joined this forum to figure this abbreviation out. I haven’t seen this used on other forums, so just wondering.
Sorry for going off subject ...��
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Most would say "Dear Wife", but I've also seen "Devil Woman" - my DW calls me the DW because she says it stands for "dim wit"
Here's a big list - not sure how official this might be...
http://www.keystoneforums.com/forums...read.php?t=449
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10-01-2020, 08:49 AM
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#19
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Member
Join Date: Sep 2019
Location: Sioux Falls
Posts: 37
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Install a secondary knife valve ahead of the discharge cap. This will stop any. Liquids, that may be left in the drain lines, from making its way to the cap.
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10-01-2020, 11:27 AM
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#20
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Senior Member
Join Date: Aug 2015
Location: Tucson
Posts: 117
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Quote:
Originally Posted by travelin texans
I still have a hard time understanding why some folks buy a rv then don't use the toilet (some don't use the shower either) as it was designed to be used, save money & buy a pop-up or a tent.
I paid for a rv so I'd have all the conveniences of home & didn't have to go elsewhere to do my business. Curious do they use the facilities at home, go elsewhere or have an outhouse.
I understand it's a sh###y job, probably the worst part of rving, but if careful & pay attention it's not that bad & I guarantee everyone has the same bodily function.
As to the OP, some rvs can have a couple feet of 3" piping after the valves with twist/turns that can hold liquid then while traveling it works to the cap.
Pickup a cap with water hose attachment on it & remove that small cap over the open hose before removing the 3" cap, lot smaller stream to deal with.
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I agree 110%. We purchased out TT exactly because we wanted our OWN bathroom, Kitchen and Bedroom. To NOT use it that way don't make sense. Likewise with the notion that one should not alter the interior to fit ones taste because it MAY lower the resale value. People buy homes and re-do them to thier need and liking without thoughts to resale value. I tore out the bench in the slide after it collapsed but I did not rebuild it I bought a dresser and chairs to use there instead. That was OUR taste. We have now been enjoying it for over 5 years. Ultimately the difference between what I paid for it and what I get when I sell it will be what it cost me to enjoy camping for the years we have used it. Simple economics.
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