When performing overnight FC loss does the pump need to run?
I'm doing this tonight because I want to double check that somethings not going on. The past couple days I'm losing 3.5-5 ppm during the day.
Granted, I get full sun from 9am to 6pm and I've had between 1 and 4 humans, 1 black lab, and the front paws of a jack russel in the pool every day this week and sunscreens. Temps went from rainy and 60s to pushing 90 and sunny. FC has never gotten below my target minimum of 4 and the pool is still crystal clear and sparkling.
Recent results so I can be accountable to you all:
FC 9.5 (after last addition. Now, please note that I bumped FC this morning to 12 from 8 after sun was over pool just to give it a little boost in case something was starting, and I was at 6.5 when I added to get to 9 this evening...overshot a bit cuz I just emptied the jug after my measured addition)
CC O (has been 0 for 3 weeks every time I've checked)
ph 7.5 (held steady for several days.)
TA 110 (still working it down, but just doing it gradually without aeration)
I use pool calculator figures to calculate my ranges.
I think I'm ok and just entering another phase of learning my pool's behavior, but I just didn't know about the pump running thing. Thanks TFPers...