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Old 03-14-2011, 01:53 PM   #1
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Slow Hot Water Flow problem


Hey guys,

I"m new to this forum (and am glad I found it). My name is Nate and I live in the Los Angeles area.

Anyhow, the shower in my guest bathroom has some flow problems. It's a single handle to turn on the flow of water and control the temperature. It's got a 4-way valve behind it. The cold water flows just fine, but there is virtually no hot water. I've narrowed it down to that being the hotwater in-take on the valve and have identified. Thing is, taking that valve out is gonna be a HUGE pain in the butt. Is there a way I can take it apart (in place) and clean it that way or am I going to need to go ahead and remove it? The top and bottom pipes are copper but the ones on the side are PVC. I can do all that work, it's just gonna mean removing the paneling on the wall IOT access the pipes.

Thanks in advance and I look forward to hearing from you guys.

R/S

Nate

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Old 03-14-2011, 08:35 PM   #2
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Slow Hot Water Flow problem


Post a picture of the valve. when you remove the handle and cover plate you will have access to the valve body to disassemble it

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Old 03-15-2011, 03:42 PM   #3
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Slow Hot Water Flow problem


I know that I'm fairly new to California, but I've never seen an inside valve piped with PVC.... The side pipes are the water supply and top to shower and bottom to tub.What brand valve is it? A picture would help a lot. If the supply's are PVC a bit of glue could have gotten into the valve. Post a pic and we'll try and go from there.
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Old 04-24-2011, 07:57 PM   #4
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Slow Hot Water Flow problem




Hey guys,

Sorry it's taken me so long to respond. Here's the picture. Is it possible to take it apart in place, or am I gonna have to remove more of the shower around it in order to get at it?

Nate
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Old 04-25-2011, 08:52 AM   #5
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Slow Hot Water Flow problem


just curious, is this the only source having the problem with slow/low pressure?
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Old 04-25-2011, 08:59 AM   #6
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Slow Hot Water Flow problem


yes it is
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Old 04-25-2011, 03:17 PM   #7
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Slow Hot Water Flow problem


is all your pipes in your basement, Galvanize? Or copper.. Sometime's with Galvanize it can get lime build up and clog, And parts of the galvanized pipe can rot inside the pipe itself, Which can cause slow slow hot water or cold. Change your pipes from Galvanized to copper.. If you have galvanize
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Old 04-25-2011, 03:45 PM   #8
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Slow Hot Water Flow problem


I used to have a similar problem in a rental where the hot water pressure in the tub/shower would gradually reduce until it was almost non-existent. Cold water pressure was good. I pulled the cartridge (the white plastic thingy in the middle of the valve) and found it lined with minerals. It looked like a thin white piece of paper. When the water gets hot, the calcium/lime is deposited inside the valve until it slowly clogs the valve. It's easy to clean with an old toothbrush, or just replace the valve. Don't know much about your water in CA, but if it is 'hard' then this might be the cause.
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Old 04-25-2011, 06:52 PM   #9
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Slow Hot Water Flow problem


Just a quick question before you disassemble everything: have you taken off the shower head and run the shower?

The reason I ask is that I have a similar issue, but the reason is that the shower head is designed to avoid scalding if someone flushes a toilet, etc. This seems to be a consistent "feature" with the newer shower heads I looked at. When you take the head off, the water shoots out as one would expect (hot and cold), but with the head in-place, the pressure decreases. I don't specifically know how the technology works, but I just wanted to mention this. It's an easy test, and would prevent the royal p.i.t.a. of taking apart of the valve and not having that change things.

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