is size matter (house, swimming pool, office)

[boonelsewhere]

I was on the other thread the subject about pressure tank came up that remind me of the decision on the tank size. DW wants 4-6 gallons per minutes for the bath rooms so she can have water run out 2-3 fixtures at the same times, that drive the local plumber crazy with the temp control volve, mixing volve and the diverter volve which i don't know anything about, neither the plumber here to do the work, he has to be on the phone with some one at his office for help. That aside when the well driller told me he find water at 300 feets and only a gallon per minute, i told him what DW wants water flow in the bath room. He said be can go down 60 feets more to use that at a reservoir that may help a little and may be get a bigger tank. We end up with 120 gallons pressure tank that heavy and installed 2 inch lower than the wood floor. When NMLM mention about drain the tank if away during the winter, i think i have a problem, it will be massy and difficult.
At first i though have a bigger tank will allow us to flush toilet durring the power outtage manny time before the tank empty, I was wronge on this also, water does not go to toilet tank from presure take when there is not power.

[forest beekeeper]

The pipe coming from my well is about 1 1/2 inch.

I connected a swimming pool [D.E.] filter to that so we could keep a heavy flow possible.

Then we used a 10 gallon expansion tank, then using one inch pipe I ran a pipe to each corner of the house for an external faucet. If we ever have to deal with brush fires, I want a lot of flow to those faucets.

All of our domestic water is done using 1/2 inch pipe which seems to allow fairly standard flow. I have two cartridge filters on the 1/2 inch pipes, one is a 0.5 micron filter and the other is a charcoal filter. We have found that we need to replace the filters about every four months.