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-   -   Supply Line Valves Keep Shutting Off (http://www.diychatroom.com/f7/supply-line-valves-keep-shutting-off-161798/)

tcharleschapman 10-31-2012 11:18 PM

Supply Line Valves Keep Shutting Off
 
2 Attachment(s)
This problem is more of a frustration and curiosity than a terrible problem. We moved into a modular home in 2011. While the house is well built, some of the items are not great. The valves on the supply lines to all of our sinks are some cheap plastic type that turn on by pushing them down and turn off by pulling them up. I don't know what they are called, but I put two pictures of them in this post.

Since things started cooling off in late August (we live at 7000 ft in Colorado right next to the mountains) the valves have been shutting themselves off at night when it cools off (Valve Pic 2 shows the right/cold water off and left/hot water on). This just started happening and was not like this the first winter in the house. Any ideas as to why this is happening?

Tom

md2lgyk 11-01-2012 07:20 AM

Wow, looks like the sort of thing you'd find in a RV (lightweight and cheap). I'd just replace them with quarter-turn valves.

joecaption 11-01-2012 07:36 AM

Replace it with two of these.
A 10 min. fix.
Shut the water off at the main, open the faucets to relieve the pressure, remove the old and slip on the new.
Fuzzy picture but it looks like you have the type valve that to remove you have to press in the gray ring to get it to reliece.
http://plumbing.hardwarestore.com/52...ve-667781.aspx

DannyT 11-01-2012 12:01 PM

when the water in the pipes cools off it contracts and is pulling the valves closed. the plastic valves are also contracting with the cold so the resistance is less to open and close them.

tcharleschapman 11-01-2012 02:05 PM

DannyT: That is what I thought, but the valves pull to close. Is this still happening? It seems like expanding water would force them to shut, not contracting.

I've thought about replacing them, but some special tool is needed to get them off. They aren't the easy ones you find in the hardware store. What tool would I need cut the pipe to remove? Also, what can I do about the fact there isn't enough pipe left for my hot water to attach a new valve to after I cut it?

joecaption 11-01-2012 02:43 PM

There's no need to cut it, reread my post please.
No special tools needed, an adjustable wrench set to the pipe size works fine to push againt the gray ring to reliece it.

tcharleschapman 11-11-2012 01:09 PM

2 Attachment(s)
joecaption: I've tried to take a better picture. These are two angles from beneath the same valve. Where is the mechanism to remove them?

When we moved in we got a new dishwasher from Home Depot. The group came in to install it and couldn't because they don't do anything with these types of valves. Something about insurance not covering. A separate install guy came out and had to cut the pipe off just short of the old valve and install the new one, which is the one you recommended.

Thanks.

tcharleschapman 11-11-2012 01:17 PM

Deleted because post was a duplicate.

TheEplumber 11-11-2012 03:33 PM

I did a little search for you- and anyone else with these valves.
I have removed them before and I usually resort to brute strength and a pair of pliers- twisting and pulling...
This video shows a trick or two. His are installed on CPVC pipe
http://www.youtube.com/watch?v=sNTfM_vku5k

tcharleschapman 11-12-2012 01:40 PM

This is excellent! I didn't think I just needed to unscrew it. So, I now know I just need to pick up some new valves at the local hardware store. Is there any special way to purchase the hose, because that is not only permanently connected to the valve, but I'd like higher quality ones?

joecaption 11-12-2012 04:59 PM

Just buy stainless steel braided lines with a 3/8 end on them.

tcharleschapman 07-17-2013 04:42 PM

Thanks everyone that helped!

I had delayed this for a while because I was afraid I would screw something up.

So, I tackled the two valves under my kitchen sink. One I had enough pipe just to cut off the old valve and install a new quarter-turn valve (one of those ones you just screw on and it clamps down on the end). The other not enough room to install a new valve so I tried unscrewing. While a HUGE pain to get it off, it did come off. Installed a valve there, too.

Since doing these two valves, no other cheap valves have popped in the house. I may try to do one sink a month to keep cost low.

Thanks!


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