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Author:
nycpro (NY)
Due to space constrains, need to find the smallest/shortest quarter-turn, 1/2" MIPT ball valve to connect a washing machine. Have been told that hose bibbs are not suitable for this but can't remember why. True?
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Author:
North Carolina Plumber (NC)
False, you can use them if you like.
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Author:
PlumberLoren (CA)
Have you tried the Big Box Stores? If not try a good Hardware Store like Ace. A Ball valve will give you near full pipe size opening. A Hose Bib will reduce it to about 5/16" to maybe 3/8" opening. Go for the Ball Valve.
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Author:
nycpro (NY)
Thanks, Loren. You are saying those are not good because not full-port valves?
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Author:
hj (AZ)
The port in the hose bibb is PLENTY large for a washing machine because ITS port is no bigger than the one in the faucet.
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Author:
PlumberLoren (CA)
Unless I am misunderstanding the question I disagree HJ. The Hose bib is the faucet in this case. You need only to look at the difference between a Hose Bib and Ball Valve openings.
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Author:
Paul48 (CT)
You're filling a washing machine, not fighting a forest fire. Boiler drains and similar valves have been used for years for washing machines. It's not until recently that they came out with the fancier hook ups, but that is more about aesthetics than function.
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Author:
sum (FL)
hj was referring to the port size on the washing machine side I believe.
The hoses are connected to an inlet valve.
The connection on the washing machine side has a mesh screen in it, a few weeks ago I replaced one in my Kenmore and behind the screen is another restriction with like 8-10 little holes, then it goes into the solenoid control thingies, then the mixed water comes out of the barbed connection to some tubing I don't even know if it's 3/8". So full port valve coming into the washing machine is still going to be restricted significantly.
A few years ago I installed a new pressure balanced shower valve by Grohe and it has 3/4" inlet ports. But when I looked into the ports with a flash light, and saw the chambers that twist and turned inside the valve body, and the size of the hole that comes into the mixing chamber where the cartridge sits, I wonder why they even need 1/2" connections, there are really small bottle necks inside the valve.
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Author:
Paul48 (CT)
Right..........I was talking about there not being a need for a full port ball valve, in part because of what hj said.
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Author:
jblanche (WI)
You're filling a washing machine, not fighting a forest fire.
In fact, When my 30-year-old washing machine's internal vacuum breaker started leaking, I found the internal fill hose ID was about 3/8".
I wouldn't hesitate to try even an ordinary 1/4 turn chrome fixture stop, although adapting the output to the washing machine would take a little work. Worst case, I have to replace the valves again.
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Links to the State of Wisconsin Plumbing Code:
[docs.legis.wisconsin.gov]
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I am not a plumber.
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