In article ,
says...
There is an assumption that those who are reading posts in an engineering
newsgroup have sufficient knowledge to understand enough of the thread so as
to be able to ask for clarification of a post, and to not make stupid
comments until they do.

Your own criteria compel you to silence on this subject.

you know, Dougie, if you have little experience or background in the subject
matter as you appear to have, and your reading skills are as poor as yours,
you should let the engineers who do this regularly, speak.

It's pretty clear that you have no practical, real-world experience with
residential water wells whatsoever, and not much more in comprehending
written English.
[snip]

Third, set for 38 psi so you can have how much water stored under pressure
at 40 psi? Enough to keep the pump from running except on draws above the
rule-of-thumb of a gallon?
A five gallon tank gives a gallon reserve at 25 psi precharge 40-60 psi,
and the same five gallon tank gives a gallon and a half reserve at 38 psi
precharge 40-60 psi.

True, but utterly irrelevant - the clear sign of an academic with no
experience in the real world. Who the hell uses a five-gallon pressure
tank on a residential well? If you had any real-world experience with
residential water wells, you would know that (a) forty-gallon and larger
tanks - sometimes *much* larger - are the norm, and (b) *nobody* who has
even the faintest idea of what he's doing installs and configures a
residential well such that the pump kicks on after a drawdown of as
little as gallon. One gallon isn't anybody's "rule of thumb" in the real
world.

Go back to your ivory tower, and leave the discussions of real-world
problems to those who have some actual hands-on experience with the
equipment in the real world.