How much salt does liquid bleach add?

[smallpooldad]

Dear Richard (Chem Geek),

Thank you for your reply here are the numbers.

9,000 Gal Gunite pool
Pump Runs 12 hours
Sunlight 12 hours per day with high UV

FC 6 lowering to 4 at end-of-day (Wal-Mart's Ultra Bleach 6%)
CC 0
pH 7.3 rising to 7.5 at end-of-day (Muriatic Acid)
TA 100 lowering to 80 after 3 days (with CYA/Alkalinity allowance of minus 20 therefore TA reads 120 and lowers to 100) (using Baking Soda)
CYA (cyanuric acid) 50
CH (calcium hardness) 250 (rises 70 ppm after 3 months)
Temperature 80 F
Salt 1400 ppm no saltwater generator pool (not sure of the rise after 3 months but will advise in 3 months)

The pool is open without a cover, no water features, it is not used a lot only by me - no splashing.

We do have a lot of trade winds blowing 15 to 25 mph. These winds blow in fine airborne dust and pollen and a fair amount of leaves which I remove daily. They also blow in red dirt, aka ferric oxide or rust if you like, from the volcanic soil; this creates an iron issue. I treat this every month with one quart of Omni's stain control (not remover). Water is topped of with 160 gals once or twice a week depending on how windy it has been.

Could the blow-in be affecting the balance or is it possible that the rains which travel far over the Pacific ocean have a different chemical composition from those on the mainland USA, such as more salt?

When it rains the pH rises and the alkalinity drops.

My neighbours pool has exactly the same results as ours except that their pool is 20,000 gals gunite.

Tap water in Hawaii is pH 7.9, Alk of 60, hardness of 60 ppm, no chlorine.

Hope this helps and looking forward to your reply.


Aloha.