After coming, I seen that there’s been a lot of corrosion on the connection of the supply lines on top of the water heater, and I also noticed that they used galvanized to hook up the The 1 gallon pressure tank above the heater. I need to replace the three-quarter tee, the galvanized piping and also the supply lines. Ps also the circulating pump is hooked up and properly got the wrong check valves and it slanted to the side and it also has pecks