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Old 10-07-2011, 03:26 PM   #1
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Hot Water Heater Installation


Has anyone ever installed a hot water heater and put a ball valve on both the cold water supply and hot water exit pipe?

If so, why did you do this?

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Old 10-07-2011, 03:44 PM   #2
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Yes, on commercial projects WH are commonly piped this way. Specified by the engineer/architect. Also good practice.

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Old 10-07-2011, 04:05 PM   #3
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Originally Posted by handy man88 View Post
Has anyone ever installed a hot water heater and put a ball valve on both the cold water supply and hot water exit pipe?

If so, why did you do this?
The only reason I can see would be in case you wanted to replace the hot water heater down the line. Having a valve could help prevent needing to drain the hot water system first, especially if there are floors above the HWH.

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Old 10-07-2011, 06:09 PM   #4
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I believe in never having enough ball valves... the more the batter.

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Old 10-11-2011, 08:17 PM   #5
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During the install of a HWH, does anyone see an issue with the plumber shutting off the water supply from the street vice shutting it off the water supply from the home's water main?
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Old 10-11-2011, 09:36 PM   #6
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During the install of a HWH, does anyone see an issue with the plumber shutting off the water supply from the street vice shutting it off the water supply from the home's water main?
If said plumber is actually a handyman, the issue is that a plumber should actually be installing the water heater.

To answer the actual question : No.
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Old 10-11-2011, 10:16 PM   #7
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If said plumber is actually a handyman, the issue is that a plumber should actually be installing the water heater.

To answer the actual question : No.
No, the dude is actually a licensed plumber, not a handyman.

He says that if the valve on the main is a gate valve, then they try to shut the water from the street first.
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Old 10-12-2011, 12:00 AM   #8
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No, the dude is actually a licensed plumber, not a handyman.

He says that if the valve on the main is a gate valve, then they try to shut the water from the street first.
You never know if an old gate valve will work. The stems are known to break or the disc will fail to shut 100%. Some plumbers will go straight to the meter instead.
Any valve on the street side of the meter usually belongs to the water supplier. Only they should operate their valves
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Old 10-12-2011, 07:00 AM   #9
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i replaced one in one of my rentals last month. I did put shutoffs on both (there were none). Why? I really don't know, i didn't see that it would hurt anything, and maybe just because i could
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Old 10-12-2011, 02:36 PM   #10
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i replaced one in one of my rentals last month. I did put shutoffs on both (there were none). Why? I really don't know, i didn't see that it would hurt anything, and maybe just because i could
I was told by the plumber that they install two shut off valves at the HWH on both the hot and cold side in order to expedite the install of the HWH. Otherwise, the water from the water lines could continue to drip. Also, they can use what is called a "Jet Sweat."
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Old 10-12-2011, 03:52 PM   #11
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Originally Posted by TheEplumber View Post
You never know if an old gate valve will work. The stems are known to break or the disc will fail to shut 100%. Some plumbers will go straight to the meter instead.
Any valve on the street side of the meter usually belongs to the water supplier. Only they should operate their valves
I hate gate valves......One of the first things I did when we bought our house 11 years ago was to replace the gate valve at the house with a ball valve.

No matter how how hard I tried...the gate valve would not completely shut off the water....makes sweating a joint a bit more difficult......time to break out the bread....
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Old 10-12-2011, 04:59 PM   #12
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I always install two, why not. Ball valves stop and waste.
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Old 10-12-2011, 06:37 PM   #13
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I've have a few ball valves pop wile soldering pipes that were close once they pop they will leak a little.
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Old 10-12-2011, 06:38 PM   #14
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In Chicago it is illegal to install a ball valve on the hot side you need a three way valve.
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Old 10-12-2011, 08:12 PM   #15
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In Chicago it is illegal to install a ball valve on the hot side you need a three way valve.
What is the logic behind that?

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