I am a newbie here but read a lot of articles. I read one on adding DE to your sand filter to improve fine particle filtration. I get a good bit of fine "dirt" that settles in the creases and crevices of my liner so I thought I would try to add a little DE to improve filtration. I followed the article on here on how to add 1/4 cup at a time until it raises PSI by one. For my filter that was 1 cup. The problem is that a few hours later my PSI was up by 8 PSI. I read the article again and it said
" The very first time you do this, you should keep an eye on the filter pressure for the next 24 hours or so. The improved filtering may quickly catch a lot of very fine particles and send the filter pressure up rapidly. "
so I backwashed and PSI was back to normal. I added 1 cup again, again it raised PSI by one and then 2 hours later it was back up 8 psi. So again I backwashed and its back down to normal (15PSI)
So my question is what do I do next. Keep doing this experiment? Or add less DE to my sand filter? Or just leave it alone and deal with the fine sediment.
Chlorine is at 8 CYA is at 70 PH is 7.8 SWG is running 40%
" The very first time you do this, you should keep an eye on the filter pressure for the next 24 hours or so. The improved filtering may quickly catch a lot of very fine particles and send the filter pressure up rapidly. "
so I backwashed and PSI was back to normal. I added 1 cup again, again it raised PSI by one and then 2 hours later it was back up 8 psi. So again I backwashed and its back down to normal (15PSI)
So my question is what do I do next. Keep doing this experiment? Or add less DE to my sand filter? Or just leave it alone and deal with the fine sediment.
Chlorine is at 8 CYA is at 70 PH is 7.8 SWG is running 40%