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upstairs water pressure low

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Topic by BrownsFan posted 11-29-2013 03:36 AM 2858 views 0 times favorited 4 replies Add to Favorites Watch
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BrownsFan

10 posts in 2445 days

11-29-2013 03:36 AM

I’ve noticed decreasing water pressure upstairs when awater is being ran downstairs. Now of course I expect some water pressure drop, but tonight I didn’t even get a drip of water upstairs when the washer was running down stairs. Iturned the water on to only hear gurgling as the water fell back down. This is a problem that seems to be gradually.getting worse.

We have a well. The pump kicks on at 35psi and charges the system up to 60psi. Both readings taken from the basement level.

What do I check first?



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Dan Lyke

331 posts in 3822 days

12-02-2013 01:12 AM

Two things it could be: Either you’re losing pressure somewhere (leaks), or you’re losing flow (blockages in the pipes). If the static pressure of the system is 60PSI, then I’d say you’ve got an obstruction somewhere.

I’d measure how long it takes to fill a half gallon jar at every faucet in the house and see if there are obvious differences.

9¼” of head should be about 5PSI. Do you have old galvanized steel pipe that might be narrowing inside?

-- Dan Lyke, Petaluma California, http://www.flutterby.net/

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BrownsFan

10 posts in 2445 days

12-03-2013 12:11 AM

Thanks for the re: Dan.

Most pipes are tucked in finished basement ceiling and walls. House was built in 1995 and we moved in last fall so I have no idea about the pipes. I see about 10” of galvanized in and out of the blue pressure tank everything else I can see seems to be copper.

Since I posted I’ve been wondering about the water heater. It is showing its age. It is original to the house. I’m wondering if there could be sediment build up restricting the outflow from the water heater….. however the pressure issue is on both hot and cold sides. Hmmmm.

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Dan Lyke

331 posts in 3822 days

12-03-2013 12:16 AM

Remember that static pressure isn’t dynamic pressure. You can have a full 65PSI on both sides, but then have the outflow side drop to 5PSI as soon as you open a tap because there’s not enough room in the pipe to keep the pressure at 65PSI with a valve open.

(This is one of the hardest things to get in electronics: That that 10k Ohm resistor can really remove those 1000 volt transient spikes because even though the electrons are really excited, there aren’t enough of them to make a difference.)

Are you seeing the same flow issues on both the hot and the cold lines?

-- Dan Lyke, Petaluma California, http://www.flutterby.net/

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rubytorres

5 posts in 1055 days

11-02-2015 11:22 AM

Thanks for sharing.

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