Looking ahead to possibly changing out the pump and backwash valve. Are the pipes/fittings typically available at the Home Depot, etc? I have installed a few sprinkler systems and walked the aisle of HD but never pay attention to pool fittings.
For the backwash valve from the same manufacturer, are the holes spacing the same (union to the tank, Planning to change the valve since there is a slow leak but not the tank). The handle says Haywood SP722-D which looks like this below:
Amazon.com: Hayward SP0410X502S Micro-Clear Slide Valve Assembly with 2-Inch Pipe: Patio, Lawn Garden