What Is The Thing Called That Stores Water Under Pressure For Low Water Pressure? - Plumbing - DIY Home Improvement | DIYChatroom

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Old 08-08-2010, 10:03 AM   #16
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Have you checked the water pressure?


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Old 08-08-2010, 10:32 AM   #17
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Originally Posted by LateralConcepts View Post
Have you checked the water pressure?
What do you mean by that? If you mean the pressure at the curb, yes, the very first thing I did was have the city come out and test/inspect the valve and they said it is within their standards or however they put it. Basically they told me the problem lies on my side of things. They also suggested I replace the main line from curb to house - and that is what got the ball rolling on me getting those two quotes for main line replacement.
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Old 08-08-2010, 12:22 PM   #18
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The bladder is a component inside the tank. The tank either has one or it doesn't. It is not mandatory but makes the system more carefree. The bladder keeps the air and water in the tank separate so the water doesn't absorb the air. If all the air got absorbed, the system behaves as if there was no tank. A (usually hand operated and portable) air pump is used to calibrate (or pre-pressurize) the tank. A crude but usually acceptable calibration is had by turning the system off, draining any water from the tank, fluffing the bladder, if any, using the tank air valve, closing the air valve, and then turning the system back on.

Just putting a pressure gauge on a garden hose spigot and seeing acceptable pressure (measuring static or no-flow pressure) does not mean you will get an adequate water flow.

Yet another way of improving water pressure is to put a holding tank that functions as a cistern in the attic. This is called a standpipe. No pump is needed as long as you get some water flow at all from the water supply pipe when it is routed up that high. The tank does have to be vented so you get (gravity) outflow to your fixtures without corresponding inflow (make up) from the supply pipe, and some kind of automatic supply shutoff so the tank doesn't overflow after it refills. This single tank should also keep up the hot water pressure by suppling the water heater.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.

Last edited by AllanJ; 08-08-2010 at 12:38 PM.
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Old 08-08-2010, 02:09 PM   #19
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I would find out WHAT EXACTLY the pressure is. 'Within our standards' sounds like a BS cop-out typical city response to me.

If that's all the pressure they have there and it's low, and they're not going to alleviate the problem, you should probably put in a storage tank 2500 gal - 3000 gal, and pump out of that. You will have plenty of water then.


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