Over the last 4 years I've had several pool services and none have been able to keep my pool algae free, without a lot of effort. Pool is heavily used in North Carolina, and often has had 10-15 house occupants in the pool in hot weather.
Following prior tips on this forum, am starting anew! again, as cya was sky high, due to over use of pucks.
This year we are starting fresh with a thoroughly drained and cleaned pool and a fresh city water refill.
The only things added so far was one shock with cal-hypo and some chlorine stabilizer.
The latest results show The calcium level is cca 100 ppm. Ph is 7.4, alkalinity 60 ppm., chlorine at 5ppm, and cya at 30. not sure about calcium hardness? unless Ch is the same thing as cca?
We plan to solely use which ever chlorine product that keeps cya the lowest other than liquid bleach..
1. Do my levels sound ok, or adjustments might be needed?
2. Is it ok to use Cal-hypo for lowest cya? (I choose not to haul liquid bleach, but know it's an alternative)
3. Is algaecide recommended in my current situation with the fresh fill of city water, in view of our history of algae?
4. Is there a down side to just using cal-hypo?
5 Is CH the same reading as CCA? (newbie here)
the pool and water are now perfectly clear.
PS. I have seen this post from 'chem expert' on this forum...
For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6 ppm.
For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm.
For every 10 ppm FC added by Cal-Hypo, it also increases Calcium Hardness (CH) by 7 ppm.