New pool owner here and I have a Hayward SP722-D slide valve attached to DE6020 DE filter. I can't find a manual on the internet for the and want to make sure that I'm back washing and charging correctly. This will be my first time to back wash. Here is what I think the sequence may be: Turn off pump, unlock valve and pull up, turn on pump for 2 minutes, turn off pump, push slide down and lock, turn on pump and add 6 lbs. of DE to skimmer. Is this the correct sequence?
Also, is there a way to rinse the SP722D slide valve? And, if you were to replace this valve, what valve would you use?
Thanks in advance