I'm on my 2nd season as a pool owner and having difficulty maintaining adequate FC levels this season.
This season I'm having to run 11 hrs total on SWG to equal FC levels achieved last season with 8hrs total run time (4 day/4 night). I maintain chemistry per TFP guidelines for SWG.
Current measures are as follows:
FC 6.0 (7 AM)
CC barely above zero
pH 7.6 (maintain @ 7.5-7.8)
TA 65 (maintained @ 60-70)
Salt 5400 (this wasn't intentional, but SWG Mfg says up to 6000 is OK)
Temp: 85-90 depending on time of day.
This spring I replaced the salt cell with an aftermarket. I increased the CYA from 60 to 75 and CH was running from 200-350 over the course of the summer. I'm inspecting and cleaning the cell weekly and finding flakes of Ca in the sock from floor drain. The cell isn't clogged by any means, but it will always have some deposits.
I've measured FC directly from a return and consistently get 1ppm > than a sample from the pool.
My questions are:
1. Will an increase in CH reduce the efficiency of SWG?
2. Is the pH range I'm maintaining appropriate or should I try to run it a bit lower?
3. Does the FC level directly from return (1ppm > pool) sound about right? I can provide pump info if needed.
Thanks in advance for your input.