Just installed a new well pump?
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bioman
Feeling the Heat
should be a pressure switch on or near your pressure tank.should be a removable cover. inside there should be 2 adjusting nuts with springs under them turn the biggest one clockwise 1 turn & try it. turn the power off before you open it up, or it could be a shocking experience. hope this helps .
If you have a bladder type pressure tank I think you may have to adjust the pressure on that as well.
Gary
Its been awhile, I used to charge my tank at 40 psi of air pressure. I think it would be the same for a bladder unit ( they might be precharged), I think that was after filling the tank about1/2-3/4 full of water. mine was non bladder tank. There should be a valve ( like a tire valve) if its a non bladder style. I am not sure on the bladder units as they were just coming into vogue when the city put water out front ( mandatory hook up, that,s another story though).
There is a little black box to the side of the pump, usually where the power wires go to the motor. It will have two thumb screw adjustments (under the lid). One is the low limit and one is the high limit. Do you have a pressure gauge on this system? Usually the low limit is set to about 45PSI and the high around 60PSI.
Disconnect power before making adjustments. Go in half turn increments. Apply power and open up a water spigot. Observe the pressure gauge to see where the pump turns on and off and adjust accordingly. Your pressure tank is either a bladder type that should be precharged or the tank will have a valve stem like a car tire on it. If it is the valve stem type, anytime that you break the seal on the system (like changing pumps) it may require more air to be added. If this is the case, you will notice the pump will cycle on/off frequently with little water usage.
Kool. You may find that the lower limit is more user friendly at 45 psi if you have all the mandated water saver appliances. If you still have old school showers and faucets it will not really matter as much.
I just keep increasing my cut-in pressure until the wife stops complaining. 
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