Increasing water pressure

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Old 11-07-16, 10:55 AM
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Increasing water pressure

My daughter bought a house that is on a well. The house originally had galvanized piping throughout the house, and water pressure was very weak.
All the metal piping was replaced with PEX. I was hoping that getting rid of the galvanized would help with the pressure but it didn't.
Is replacing the pressure switch at the tank the best/only way to increase the pressure, or is there any adjustment in a standard pressure switch?
Thanks.
 
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Old 11-07-16, 12:05 PM
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If you take the cover off of the pressure switch you'll see contacts that can be adjusted by screwing them in/out but there is a limit as to how much adjustment you can do. What is the current pressure? Do you know what size switch you have. It used to be typical to have either a 20/40 or a 30/50 but I've not had a well in 25 yrs and my memory is a little fuzzy
 
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Old 11-07-16, 02:41 PM
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Most often the issue will be how it was replumbed.
If they did not use at least 3/4 main runs and 3/4" lines in and out of the hot water tank your getting 1/2 of the available flow.
It's like standing on a garden hose and trying to water the garden.
 
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Old 11-07-16, 05:12 PM
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The line from the well to the house is 3/4". It stays 3/4" through the water heater and to the first place it needs to tee off, then it's 1/2" from there to each area of the house.
 
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Old 11-08-16, 04:59 AM
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Check the water pressure. Notice at what pressure the well pump turns on and off.
 
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Old 11-08-16, 04:09 PM
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There's your answer, a 1/2" main run will have about 1/2 the avaliable flow of a 3/4" line.
 
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Old 11-08-16, 04:41 PM
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But it has a 3/4" main, not 1/2". My house has all 1/2" and has a lot more pressure than this.
I guess I will need to crawl into the pump house and have a look see.
 
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Old 11-08-16, 06:08 PM
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Once again... check the water pressure. Your pipe size can cause a reduction in flow volume if the outlet (faucet) can flow more water than the pipe can provide. So, pipe size can have an affect but the first step on the ladder is your daughter's water pressure.

Oh, and check the water pressure. Until you know that you are just guessing.
 
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Old 11-09-16, 09:27 AM
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What Pilot Dane said. Your first step is to confirm the pressure is set correctly. Checking the pressure will also confirm that the pump/pressure tank/switch are all working properly.
 
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