The time's come to replace the old (bladder type) pressure tank on our well water supply system. I've sized the new tank according to the flow rate from our (submersible pump) well and the manufacturer's suggestions. Our house plumbing is copper.
When I looked at the old installtion, I noted that the pump discharge line went straight to the cold water shutoff for the house, with a tee on the supply slide going to the pressure tank (about 6 feet away). The copper line off the tee enters a common 1" galvanized tee which sprouts the pressure switch and then a reducer which matches the 1 1/4" tank outlet. There is neither a tank drain hose bib, nor a pressure relief valve on the system, nor a shutoff valve on the pump discharge side.
My initial feeling is that this does not conform to code and was probably a "homeowner's special" installation.
Would it be prudent to change this setup by using a standard brass tank tee (with pressure switch, drain valve and pressure relief valve and pressure gauge) and breaking the supply line before the cold water shutoff to put the pump discharge with a shutoff valve on one side and the house cold-water feed on the other?
If so, does code require flex lines between the tank tee and the remainder of the system? Should the tank be strapped to the structure (earthquake safety) the same way my water heater is?