Hello. First time poster here. I just discovered this forum and it's been very helpful as going forward I plan on opening and closing my pool. I've had my pool for three years now (it came with the house) and knew absolutely nothing about pools. I've learned a lot about maintaining the water but haven't felt confident enough to open and close it yet. I've always hired someone. This year I tried someone new because the person from last year did not do a good job. Well, this second company was much worse and twice the price. They didn't properly start the pool up, overcharged me for every oring and gasket they had to change, and charged me labor fees for coming back to finish the job.
I blame myself for not doing enough research, but the real question I have is this. I noticed that my DE filter was building up a lot of pressure and the return jets were very weak. If I backwashed it, everything would go back to normal but it would last maybe an hour before the pressure built up and the jets were weak again.. I asked the guy /company that opened my pool and he said based on what I said he thought the grids had to be replaced and it would cost about $34 each (8 total) plus labor and taxes. When I asked if he thought it could last this season he said it could, but I would have to add very little DE and maybe it would last, otherwise to call him to come replace it.
Now I did a little research here and some other sites and learned that running the filter with no or little DE could actually make the grids worse and that the real tell tale sign of a bad grid is seeing DE in the pool (which I didn't see). So instead of following this guy's advice, I went ahead and backwashed it again, but this time added the full recommended amount of DE. The pool seems to be functioning normally now. It has been for the last 4 hours.
So I'm wondering if this guy was telling me to put less DE knowing it would case more damage to my grid and force me to call him. Before I call him out on this, I was wondering of anyone has had a similar experience with a DE filter and if what he was telling me is legitimate or if he was telling me the exact opposite of what I should do in the hopes that I wouldn't do the research and call him back.
Sorry for the long post and thanks for reading this far