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Old 10-24-2010, 03:13 PM
dfennell dfennell is offline
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Question Holding tank valve replacement Raptor 3612DS

My wife and I purchased a used 2006 Raptor 3612DS, We use it alot and love the trailer. Recently I've noticed that the main gray and black holding tank dump valves are starting to get hard to pull open and push closed. I did some investigation and found that there is a long cable running from the side of the trailer to the acctual valves that are about in the middle of the trailer. Does anyone have any pointers on replacing them? My biggest question is how to repair the one peace plastic cardboard stuff that covers the whole bottom of the trailer. I don't want to just duck tape it as I know the wind will eventually peal it off and the bottom has to be removed or cut to gain access to the valves. Any ideas? Also does anyone know if the DrainMaster electric valves will fit?

Thanks for any help here.
Darin

Last edited by dfennell; 10-24-2010 at 03:22 PM. Reason: Spelling correction on title
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Old 10-24-2010, 05:10 PM
Festus2 Festus2 is offline
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Darin:
If you are going to cut the Coroplast underbelly to gain access to the drain valves and are looking at repairing it afterwards, have you considered buying another sheet or sheets of the same material and laying it over the the section that you made your cuts? You can drill new screw holes or try to line up with the existing screws/holes. I think these screws are long enough to accept a double layer of the 1/4 in Coroplast. You can buy this stuff at Home Depot or other building suppliers.
I have had trouble with one of the long-handled pulls. Went to pull the grey tank (galley) handle and ended up with it in my hand. The whole thing - handle and rod - came out of the main drain pull. The rod has threads at the far end that screw into ???? on the main valve. Can't really see it but managed to thread it back on after putting some Lock Tite on it. Certainly not the sturdiest mechanism around and far too inaccessible! On another occasion, just the handle came off. I have learned to be very gentle when pulling and pushing on these drain tank dump rods/handles.
Not sure about the DrainMaster Electric Valves whether or not they will fit.
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Old 11-30-2010, 01:28 PM
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hoffbrew hoffbrew is offline
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What did you end up doing on this issue? Mine is doing the same.
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Old 12-01-2010, 07:31 AM
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BigCajun BigCajun is offline
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Check out the For Sale section, I have two 12v Auto-Drain valves for sale. New never installed. Was going to use them on my old camper, but upgraded before I could install them.
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Old 12-02-2010, 03:11 PM
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hoffbrew hoffbrew is offline
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Do you have a brand and part number on this unit, I would like to look this up.
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Old 12-15-2010, 06:58 AM
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BigCajun BigCajun is offline
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Auto Drain 2 for 3 inch valves. Box says that no plumbing changes needed. Rocker on/off switch included.
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Old 12-16-2010, 01:39 AM
traveler traveler is offline
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The motorized valves and exterior lubrication may provide temporary easing on the pull for the valves, but the cause of the problem lies inside of the valve itself.
For decades these valves have been cheaply made (all brands) and are designed to be verticle, none are in rv's.
Inside is a teflon gasket that dries out and gets debris wedged between the gasket and the slide, both causing drag and eventually will break.
I have found the solution is to disassemble the valve, use Dupont 111 silicone lubricant that does not wash away, then reassemble.
You will be amazed at how easy the valve will pull for a long time to come.
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Old 12-22-2010, 11:39 AM
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hoffbrew hoffbrew is offline
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Good idea! I will look into this fix. Thanks for the update.
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