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Old 10-05-2012, 01:43 PM   #1
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Fresh water drain valve replacement

I like to start out with a full tank of FRESH water from home - some of the sources on the road are a little suspect, including the one that completely clogged my hose-end filter, which I was very glad I used.

This means draining the tank when I return. The plastic drain valve is very tight and difficult to open. The handle wants to bend and I have to be very careful not to force it. If it breaks I'm in trouble.

Has anyone found a good reliable replacement? The Camco ones that come up on a web search look just as weak. Is there a brass alternative?

I don't want to try removing the one I have until I know what I'm going to put there, so your assistance will be valuable. Thanks!
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Old 10-05-2012, 03:28 PM   #2
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Probably if you search tank drain I remember someone on here replacing the plastic valve with a regular brass valve. Just remember it will be in a very vulnerable spot if its between the tires if its like most. Sal.
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Old 10-05-2012, 04:41 PM   #3
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Here is one thread, but I know there are a bunch more.
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http://www.airforums.com/forums/f163...ent-86063.html
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Old 10-05-2012, 08:08 PM   #4
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Before you go and replace the valve, try some food grade silicone spray on it. It's in a tough spot but a good, occasional dousing of the silicone should make a big difference.

John
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Old 10-05-2012, 08:09 PM   #5
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I think that you will find thay AS used a soft neoprene hose between the tank and the valve. These hoses colapse and the drain does not work even when you can open it. You can take that value apart. The plug handle should push up and out. I think you will find the solution is to cut a 6x6 hole in the tank cover bottom to service the hose and replace the vavle with a boiler drain petcock. (or hosebib)
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Old 10-05-2012, 11:41 PM   #6
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Try This "Drain Valve Wrench"

Quote:
Originally Posted by Winetripper View Post
I like to start out with a full tank of FRESH water from home - some of the sources on the road are a little suspect, including the one that completely clogged my hose-end filter, which I was very glad I used.

This means draining the tank when I return. The plastic drain valve is very tight and difficult to open. The handle wants to bend and I have to be very careful not to force it. If it breaks I'm in trouble.

Has anyone found a good reliable replacement? The Camco ones that come up on a web search look just as weak. Is there a brass alternative?

I don't want to try removing the one I have until I know what I'm going to put there, so your assistance will be valuable. Thanks!
I previously posted a wrench for the drain valve which may negate your need to R&R the plastic one: http://www.airforums.com/forums/f443...nch-77246.html.
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Old 10-06-2012, 02:04 AM   #7
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Quote:
Originally Posted by noreen&sal View Post
Probably if you search tank drain I remember someone on here replacing the plastic valve with a regular brass valve. Just remember it will be in a very vulnerable spot if its between the tires if its like most. Sal.

Hi, CrawfordGene replaced his drain with a brass valve.
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Old 10-11-2012, 05:19 PM   #8
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When I changed my drain, I used a 3/8" brass ball valve.
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Old 10-11-2012, 05:26 PM   #9
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Make a Drain Valve Wrench...

... just as Withidil suggests.
It just takes a few minutes and works like a champ.
I made mine by cutting a slot in a 3" PVC pipe nipple.
Voila! There is nothing wrong with the valve that 3 inches of leverage won't solve.
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Old 10-11-2012, 06:55 PM   #10
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Originally Posted by sandlapper View Post
Before you go and replace the valve, try some food grade silicone spray on it. It's in a tough spot but a good, occasional dousing of the silicone should make a big difference.

John
X2. I was going to make the wrench, then go replace with brass, but two applications of the silicone and it has operated smoothly for almost 2 years.
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Old 10-11-2012, 08:00 PM   #11
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Food Grade Silicone?

Someone explain this to me.

I realize some people have silicone in their bodies. However I believe it is cased in something less reactive. As I understand, when the casing brakes it is a health hazard. How can there be food grade silicone.

To me the term makes about as much sense as food grade Drano, or food grade gasoline.

Ken
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Old 10-11-2012, 09:05 PM   #12
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Originally Posted by w7ts View Post
Someone explain this to me.

I realize some people have silicone in their bodies. However I believe it is cased in something less reactive. As I understand, when the casing brakes it is a health hazard. How can there be food grade silicone.

To me the term makes about as much sense as food grade Drano, or food grade gasoline.

Ken
It must have been food grade teflon that they put on those millions of crappy fry pans. At least you wont ingest silicone from your drain valve.
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Old 10-11-2012, 09:15 PM   #13
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Quote:
Originally Posted by r carl View Post
It must have been food grade teflon that they put on those millions of crappy fry pans. At least you wont ingest silicone from your drain valve.
I always crawl under the trailer to drink out of the drain valve, so I get water that hasn't been exposed to the plastic pipes.. Doesn't everyone??

Ken
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Old 10-12-2012, 09:05 AM   #14
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I don't know the technical stuff as to why it is called food grade, I only know that compared to most silicones the food grade is not oily and has no smell. It is cleaner. I'm not ready to spray my frying pan with it but you could. I'll dig out my can and post the name a bit later.

John
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