I've been meaning to ask this question as well.
the new house has crappy water pressure, and is on a well. well pump just
replaced, have between 45 and 60 p.s.i., per the pump guy, 60 is the max
because the storage tank shouldn't be subjected to more.
so in northern's catalog I see what seem to be pumps for this very purpose
- install in the house, and raise the water pressure.
anybody done this, or have a better idea for getting decent water
pressure? I'm thinking it should go after the water heater, but then I'd
need one for cold water and one for hot, though I'll pay it to not have to
worry about the water heater leaking.
do the pumps actually work? is there a lag before they cut on? I know the
pipes will last slightly less long under the increased pressure, but I'm
just looking to get to ~90 p.s.i., which is what the old house had, I'm
told, and those pipes are 30+ years old, with nary a leak yet. the old
house's pressure could etch glass. excellent.
alternatively, I was thinking about...a water tower (don't act like I'm
crazier then anyone else here). maybe above the second story, built into
an addition... seriously. just a larger, elevated storage tank above the
house, with the structure to keep it there safely. just need a pump to get
it there, but after that, gravity does the rest. the problem I'm having is
how high, and how big a pipe down to get the desired pressure out. what I
need is a municipal civil engineer.
I thought about it because we were just at a city that has been using the
same tank since 1931. it's only 100 feet up (I know, but it was feeding a
whole city, I just need to feed a house) and it wasn't that big either. I
asked their contractor, but he thought I was kidding.
something to think about when talking to the draftsman for the addition...
scott
At 01:56 AM 6/2/2004 -0500, David Scheidt wrote:
>On May 30, 2004, at 3:06 PM, Bob Nogueira wrote:
>
>>
>>In looking over the specs of shallow well pumps they have a maximum lift
>>and maximum suction rating. I can see where the longer the lift the lower
>>the output would be in gal per minute. Is this also true of suction?
>>If I use a pump rated for 26 feet max suction at 24 feet, should I expect a
>>very low pressure and flow rate?
>>Thanks in advance
>>Bob Nogueira
>
>Yup. Pumps usually have a table showing their performance at various
>lifts and pressures, so you can pick on that meets your needs. It's
>possible to build a suction pump with a second stage, that applies
>pressure to the delivered water. That costs money, though, (and the
>common jet design is only good for about 18 feet) and the big advantage of
>suction pump is that they're cheap. Twenty-four feet is quite a lot for a
>suction pump, I'd think. Depending on what you want the water for,
>(irrigation? Around here, you wouldn't want to drink water out of a
>shallow well.), you may be able to use a storage (possibly quite large)
>tank and a second booster pump.
|