Do like they do in waterparks, after every hour of pool use then a 30min recovery period for a quick FC/pH check and some filtration. No one allowed to swim during the recovery time...
If it's acting sticky, you might consider upgrading to a glycerine filled high precision gauge. They are much higher quality than the cheapo OEM gauges. They cost $15-$20 and they're easy to install. My high flow air relief valve developed a leak last year and so when I replaced it, I also added the liquid filled gauge. Much nicer setup.
Looks good - no pressure change and good water clarity. Keep the SLAM up, measure FC/CC today and consider doing an OCLT tonight. If you pass all three SLAM criteria then you can let the FC drift down for your Swim-a-thon tomorrow. OR, if you want, you can just maintain your FC through the party and then finish up the SLAM after the festivities. Just note that high FC + lots of swimmers could lead to elevated CC levels and give your pool water that "gross chlorine pool smell" . Not much you can do about it unless you limit bather load.
Water clarity is phenomenal this morning!
Yes, I want that. Where did you buy it? Drop-in replacement?
My FC isn't changing - still 32 solid. I haven't had any supplemental chlorine production for a while now but its holding steady. I should maybe turn the solar on but I think the pool is warm enough already so likely won't.
I was hoping FC would drift already but still holding nice and steady so I guess I will just make sure to balance pH unless there's any other thing I can do to artificially lower FC, but I'm doubtful that's a wise idea.