But how you say that I should set it up to shut down the pump at 10psi and restart it at 30 or 40? the city pressure is around 20 psi most of the time that is why I need a booster pump
I was intending to set it up cut out at 5psi and cut in at 10 psi , does that make sense?
Because the new pump would give me the pressure I want at any city pressure I want to make full use of that and I want to be able to keep my system working at zero city pressure but in the same time I want it to shut down at dry running when actually there is no water to suck or a negative pressure would happen.
I want to make full use of the new pump but in the same time protect it from burning in case the city water is completely cut off