Insulate all brass and PVC fittings using R19 fiberglass insulation. Make this waterproof by covering it with 2" electrical water tight tape (NOT DUCT TAPE!)
Be sure to insulate completely around the pressure switch. Then use an all-weather burial type box to cover the switch, stuff insulation in this box and place over the insulated control center/pressure switch.
Also, be sure to install a 1/2" or 3/4" PVC or galvanized nipple, thread this into the female threads of the pressure relief valve (at the head). Cover the pressure relief valve leaving an opening for the water to be able to spray out of the nipple (in the event that the pressure rises too high, the water will be able to escape).
Wrap insulation around all of the plumbing leading up to and under the pressure tank. Stuff extra insulation under the footing of the tank and wrap the tank halfway up from the bottom.
How to Check Air in Pressure Tank
Turn off power
Drain water off pressure tank
Check air with tire standard 100 pound gauge; should be 38 psi
If not, try adding air to tank with air compressor
If it holds, check again in 3 days
If it does not hold, call for service
How to Chlorinate a Well
Locate 1/2" plug and/or vent pipe at top of well (should have 1/2" vent pipe or 1/2" blue plastic plug)
Unscrew plug and install funnel
Pour 3 gallons of bleach in (NOT CLOROX - CALL TO CHECK BRAND WITH US) followed by 5 gallons of water
Turn hose-bib on at the pressure tank and run until you can smell chlorine, then shut off well for 6 hours (overnight)
Flush well until smell of chlorine is no longer detected and chlorination is complete
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IF YOU HAVE ANY QUESTIONS REGARDING THESE PROCEDURES