My routine lately is to test and add liquid chlorine every evening around sunset.
When my CYA was at 20, I noticed that my evening FC was at 3. I added some stabilizer to get to CYA 30 and now my evening FC is at 4.
These FC numbers are at the bottom range of the FC/CYA chart. I'm wondering whether the sun burned through all the available FC during the day and just kind of settles at the low range. At the bottom of the range, am I still getting any chlorination benefits or is bottom range number equivalent of no chlorination?
I'm trying to optimize liquid chlorine usage since liquid chlorine is still expensive compared to a few years ago and I can't go SWCG.
FC 4
CC 0
CYA 30
pH 7.8
CH 250
TA 80
Also, water is crystal clear and I can see right down to the all the cracks in the plaster and the black algae sitting in them.
When my CYA was at 20, I noticed that my evening FC was at 3. I added some stabilizer to get to CYA 30 and now my evening FC is at 4.
These FC numbers are at the bottom range of the FC/CYA chart. I'm wondering whether the sun burned through all the available FC during the day and just kind of settles at the low range. At the bottom of the range, am I still getting any chlorination benefits or is bottom range number equivalent of no chlorination?
I'm trying to optimize liquid chlorine usage since liquid chlorine is still expensive compared to a few years ago and I can't go SWCG.
FC 4
CC 0
CYA 30
pH 7.8
CH 250
TA 80
Also, water is crystal clear and I can see right down to the all the cracks in the plaster and the black algae sitting in them.