"Scott Townsend" wrote in message
t...
So how do I determine my GPM?
I figure 3 showers @ 2 GPM, and the Dish and Close washer at maybe 1 GPM,
so that would be 8GPM, so make it an Even 10 GPM, Pressure we would like
between 40 and 70 PSI . I think we are between 30 and 60 now and its a bit
low.


The flow sounds about right for showers, but the washer is probably more,
maybe 10 gallons itself. I don't know the capacity of the typical machine,
but I think they use 15 to 20 gallons per cycle so you can time how long it
takes to fill . "Normal" pressure is about 50 psi but 80 to 100 is not our
of the question. If you have the right piping, that should carry the load.

It is probably overkill to gear up to supply every water using appliance in
the house at the same time. If three people are taking showers, just shut
the clothes washer off for a few minutes and save a lot of aggravation and
potential temperature fluctuations.

What is going to turn the pump off and on? Is it going to be set up with a
pressure tank between the pump and point of use?