Hello everyone! I am both a new board member and a new pool owner. I was hoping you could help me understand my system. I know that I have a Pentair Titan CM Filter, Hayward Pump and Solar Heating. I opened up the filter and saw that some of the DE filter fingers had tears. The replacements should be arriving today. I have read the procedures for backwashing but I just wanted to be clear on how and when to use the valves, most importantly, the valve at the bottom of the picture (numbered 1).
I believe valve 2 is for the solar and is electronic and doesnt need to be touched. Is that right?
Valve 3 is the backwash valve.