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02-11-2007, 06:58 PM
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#1
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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4th broken water tank drain valve
Today we broke our 4th plastic fresh water tank drain petcock. Everytime we drive on a rocky road, it breaks.
The small metal shield below provides little or no protection.
That's 4 valves in 3.5 years. This is a terrible design.
Can anyone recommend a better replacement? This is getting old.
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-11-2007, 07:09 PM
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#2
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Rivet Master
2016 25' Flying Cloud
Sunnyvale
, California
Join Date: Jul 2003
Posts: 1,894
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Having never broken one, I'm curious...
Is the petcock/handle flush with the side of the tank when you travel, or does it stick out? It should be flush with the side...
Is yours behind the rear wheel? Is it really getting broken by thrown rocks, or might it be wheel movement or some other component... Ours is inside front wheel, and is a pain to reach, but never gets hit..
As goofy as it sounds, I think I'd put foam/duct tape over valve when traveling, if you can't turn it far enough to get handle out of the way... Maybe others are having same problem on 31's and have a better fix...
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Condoluminum
In Theory, there's no difference between Theory and Practice, but in Practice, there is usually a difference...
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02-11-2007, 07:13 PM
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#3
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Rivet Master
Join Date: Sep 2003
Posts: 932
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I am unfamiliar with your year, but just reading your question - how about putting in a plug instead of a petcock.
It would not be as easy to drain as you would need to remove the plug, but it would be Easier then constantly breaking and replacing the petcock.
Hope this is of some help.
RichardT
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02-11-2007, 07:20 PM
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#4
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Retired Moderator
1992 29' Excella
madison
, Wisconsin
Join Date: Aug 2002
Posts: 4,644
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having broken one and replacing it with the same i can say it is not an easy task.
is the hole in the outer tank misaligned? perhaps it is putting stress on it and snapping it off. or is it getting hit by outside objects?
if it is threaded like mine is you could replace it with a short piece of pipe with a cap on it. nothing to hit.
john
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you call them ferrets, i call them weasels.
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02-11-2007, 08:05 PM
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#5
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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The break is the same as before - petcock broken off by rocks.
The valve is behind the front tire, curb side. It sticks out from the tank and has a small metal shield below.
See this image - which is what it looks like AGAIN!
http://www.airforums.com/forum...6&d=1083520568
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-11-2007, 08:10 PM
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#6
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3 Rivet Member
2003 25' Safari
spokane
, Washington
Join Date: Sep 2005
Posts: 114
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I feel your pain, I've broken two on my Safari, seems to me the guard should be IN FRONT of the drain, not under it. Then again, if a rock decides to jump straight up it might work. Queried AS JC about this, they don't think it's a problem. Well it is when all your onboard water drains away and you stop for the night planning on the shower. It needs to be rethunked, kinda like no winterizing kits on the water pump.......
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02-11-2007, 08:10 PM
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#7
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Retired Moderator
1992 29' Excella
madison
, Wisconsin
Join Date: Aug 2002
Posts: 4,644
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gus
the photo explains alot. bend up a sheet metal shroud, box shaped and screw it to the tank.
john
__________________
you call them ferrets, i call them weasels.
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02-11-2007, 08:17 PM
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#8
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3 Rivet Member
1948 16' Wee Wind
1964 26' Overlander
2007 19' Bambi
crossville
, Tennessee
Join Date: Jun 2006
Posts: 190
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replace plastic drain w/brass pet cock type valve. I buy the brass valve in 90 degree and drill out 3/8 fender washer, solder onto valve where the body goes square(disassemble valve 1st to preserve seal) drill two 3/16 hole in washer/flange you have just created and reinstall. I have used this fix many times over the last ten years and have had no more problems with the customers coaches repaired in this manor $appx.5.00
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02-11-2007, 08:51 PM
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#9
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Retired Moderator
1992 29' Excella
madison
, Wisconsin
Join Date: Aug 2002
Posts: 4,644
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excellent idea! costs almost the same as a new nylon valve!
john
__________________
you call them ferrets, i call them weasels.
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02-12-2007, 08:23 AM
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#10
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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Quote:
Originally Posted by crestonrv
replace plastic drain w/brass pet cock type valve...
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How do you keep thisone from being damaged from rocks and road gators without a shield around it?
73/gus
__________________
Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-12-2007, 09:30 AM
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#11
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Aluminut
2004 25' Safari
.
, Illinois
Join Date: Feb 2003
Posts: 10,477
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Mud flaps.
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02-12-2007, 09:32 AM
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#12
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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Got them! Now what?
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-12-2007, 09:36 AM
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#13
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Aluminut
2004 25' Safari
.
, Illinois
Join Date: Feb 2003
Posts: 10,477
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Got me. If you have a good set of mud flaps on the Airstream and you are still having the issue, I guess my next suggestion would be to rivet or screw on a deflector plate...sort of like an upside down "L" type bracket.
My dump valves are directly in line with the tire discharge and I go on gravel fairly freq. No issues so far, but looking at your pics, your area appears to be right behind the tire....
I'm still puzzled how rocks could get around mud flaps on the Airstream......
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02-12-2007, 09:47 AM
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#14
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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Oh. Our mud flaps are on the Sierra. This valve is right behind the Airstream curb front tire, so mudflaps on the Airstream wouldn't help.
After replacing the valve again, am considering a combination of a metal valve AND a box type guard. Still looking at valve options.
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-12-2007, 10:27 AM
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#15
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Aluminut
2004 25' Safari
.
, Illinois
Join Date: Feb 2003
Posts: 10,477
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Gus,
On the inside of the rear of the wheel well, there is an outrigger that you could use metal screws and mount the mud flap from the inside of the wheel well. A good flap will flex only so much, but at the same time, even with the gear near the wheel well, it should still clear it, if you mount the mud flap from the inside on that outrigger toward the rear of the well. Of course you could also place a piece of metal or plastic there as well, but I personally like a good rubber mud flap that doesn't flex too much, yet still gives way if you hit something. I've considered this many times for the Safari and it seems doable..... It wouldn't take a big flap either...you just need a few inches (maybe 5 or 6) lower than the well itself to deflect any projectiles.
PS- if you do go that route, also use Vulkem or some sort of good caulk to seal the screws in so that water and such doesn't get behind it and rust out the outrigger prematurely.
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02-12-2007, 01:29 PM
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#16
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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Thanks for the info. Good idea for protecting the rear portion of the trailer.
Does a mud flap at the rear of the wheel well protect the valve that is closer to the front of the wheel well?
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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02-12-2007, 01:41 PM
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#17
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Aluminut
2004 25' Safari
.
, Illinois
Join Date: Feb 2003
Posts: 10,477
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My bad...I read it and looked at your photos and just plugged in the discharge for the black and grey tank.....
Mine is right between the axles as I would think yours is too. I've been down some pretty rough roads and haven't lost mine....yet, but one suggestion would be to fabricate a metal cover on a hinge and use that as a protector. There is plenty of steel around that area to secure such a beast. I'm questioning though what the heck would make you loose so many....roadkill, off pavement travels (but then again, I do off pavement all the time on gravel, sand, etc). Are the tires aligned properly? I know it's a long shot, but I've been posting and tracking the QC threads since 2004 and I don't recall this one being out there or at least as many times as you've seen.
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02-12-2007, 01:50 PM
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#18
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Rivet Master
2004 30' Classic
Johnson City
, Texas
Join Date: Jun 2003
Posts: 591
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Two road gators and two rocky roads (we can correlate to the leaking fresh water). Yesterday it was a 10 mile stretch of US 90 in west Texas where TXDOT has taken the road down to raw, gravel sub-base, that we travsersed at the posted 40 mph construction area speed limit.
This moderator had a replacement, the metal valve suggestion came from several customers, and there was the Sierra owner who is on his third valve. This is just a poor design to have such a breakable nylon valve unprotected from road debris.
The wheels have been aligned, but it still happens. Just a lot of rocks flying around down there.
73/gus
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Gus - KR4K : Mary - K5MCL
2004 30ft. Classic
2017 Infiniti QX80 Limited
ProPride 3P/Prodigy P3
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