RepLepper
Attleboro, Massachusetts
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Joined: 07/28/2010
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I have a Lance 2005 Lance 981 slide-in truck camper. When I remove the cap from the drain for the black and gray water holding tanks,and before I pull out the levers to empty the tanks, about a gallon or two spills out. What is the problem and how can I fix it?
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GENECOP
NEW YORK
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Joined: 12/08/2009
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Might just need to flush out the valve, sometimes debris collects keeping the valve from fully closing, G
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pulsar
Lewisville, NC
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Moved from Forum Technical Support to Tech issues.
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MNtundraRet
Bloomington, MN
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The knife valves close into a slot on the opposite side. Sometimes undissolved toilet paper gets caught in the slot blocking a tight seal. If you can see the slot, using a bent wire can clean out the slot. Otherwise flushing water and openning and close valve a number of time may help to clear it.
When flushing always open black-water valve first. When tank is near empty, open grey-water valve, leaving other valve still open. After about a minute close the black-water valve. The extra time allows grey-water to clear any toilet-paper hung up by the valve.
Mark & Jan "Old age & treachery win over youth & enthusiasm"
2003 Fleetwood Jamboree 29
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TXiceman
(Near) Houston,TX
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First clean ot the valve seal areas and if that doe s not work, put new seals in the valve.
Amateur Radio Operator.
Vintage 1989 Avion Silver, 34V, toted by a 2002 F350, crewcab dually, 7.3L,4.10 axle,SCMT. Travel with one miniature Schnauzers, one standard schnauzer and one African Gray parrot. Practicing for retirement!
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Dick_B
Palos Heights, IL USA
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It happens! I `solved' the problem by adding a Sewer Spill Eliminator valve on the end of the outlet. This also allows me to balance my two gray tanks when the shower tank fills up faster than the kitchen tank.
Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
Equal-i-zer Hitch
One wife, two bikes (both Electric Schwinn's with motor assist)
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Dave H M
IL
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The answer is simple but fixing it may not be. One or all of the holding tank valves are leaking. Sort out which ones by leaving the cap off and collecting some leakage in a container. The smell should tell you if the black tank is the culprit.
Anyhow if you have remote valves you will have to cut access holes in the underbelly if that is the way your rig is configured - to get to the valves. If I had to go to this kind of work, I would just replace the whole valve mechanism because I Would not want to return there for some time. Usually just four bolts.
If you decide to not fix the valves and camp when it is freezing, you better leave the cap off and catch the leakage or you will wind up with a big ice burg in the pipe and hopefully it will not break the pipe.
I have had that pleasure.
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cm
Dillon, CO USA
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Joined: 08/01/2002
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A quick solution is to get one of the sewer caps that have a threaded fitting that works with a garden hose. Leave the small garden hose sized cap on and when you first start to drain you take off the small cap. You can then either hold the sewer hose under it to catch the leakage. Or catch the leakage in a bucket.
You still want to do a permanent repair. The cause as mentioned is one of the slide valves probably has some debris.
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