pentair fns plus

Hi all, newish pool owner, purchased with the house at the end of last year. Just completed my 2nd deep clean of the Pentair FNS Plus 48 DE Filter, but this time I pulled the grids out. I noticed many of them had hardly any thread left on the bottom of the grid plates. Many of them the seams...

Hello. I am new to De pools. We have a pentair FNS with multi valve. The in-laws let the pool go for about 8month with no maintenance. I was deep green with frogs occasionally in it. I started the process of shocking it, using yellow gone, chlorine, backwashing etc When we put new DE in I...

I had a small DE leak earlier this year in our seven year old Pentair FNS Plus. Filter elements were all original. Several had small frame cracks. No obvious fabric rips, but they were 7 years old and the I could tell the plastic was cracking. Since I had a DE leak I replaced them all. I...

Hello, I recently had my pool opened by my local pool company (the ones who installed it). They originally told me to run the pump for 23 hours a day and have it shut off for one hour. Since joining this forum, I was informed that makes no sense to stop it for only an hour after running for 23...