I was watching this video about cleaning the Pentair Quad DE filter:
https://www.youtube.com/watch?v=2aoP-eTpiMs&list=PLD13B4EF8AB358B02&index=17
And noticed at 3:05 there is a huge warning about the push/pull valve destroying the cartridges. I actually have one of those, and it's actually one of the approved valves in the manual itself. Is there any legitimacy to this claim that it will destroy the cartridges?
https://www.youtube.com/watch?v=2aoP-eTpiMs&list=PLD13B4EF8AB358B02&index=17
And noticed at 3:05 there is a huge warning about the push/pull valve destroying the cartridges. I actually have one of those, and it's actually one of the approved valves in the manual itself. Is there any legitimacy to this claim that it will destroy the cartridges?