Been a while since I posted, but I have a question:
I finally added SWG (with T-15 cell) to the pool (probably close to a year ago), but I find that I still have to add extra chlorine during certain times of the year.
Even running the SWG at 100% almost continuously, there are certain places in the pool floor and corners (I'm guessing with poor circulation) where I do get what's definitely algae growth (what I can reach easily is slimy and does rub off/fade if I hold a tablet to it).
Last time I tested (mid-last week daytime):
FC - 6 (which tells me it was probably closer to 8 at sunrise and maybe falls to 4-5 by day's end)
CYA - 80
pH - 7.5
Borates - 60
Rest within "normal" parameters as per Pool School.
Water temp - consistently >88 degrees, even pushing 90+
Lots of debris/leaves, seedlings etc. from nearby trees. Pool is in direct sunlight from 9AM till about 5-6PM.
No, I have not had time to do overnight test - last time I did a few months ago, things were clear up.
No, I don't brush religiously every day - that might be the "quick fix" as it will stir things up and loosen potential growth before it takes hold - or, perhaps some of it.
- does anyone find they have to SUPPLEMENT the SWG with liquid chlorine on a consistent basis? I would guess that if I got FC closer to 10-12 consistently, I would have less issues - but I can barely get to 6-8!
- Besides the obvious "need to stay on top of it with continuous brushing" and "probably should shock/overnight test" (been there done that), what else can I do with my chemistry?