Sorry for the long post, but I do not want to repeat last year! I would really like to actually enjoy my pool this year! Last year we had a huge battle with mustard algae, and thought we had killed it all before we closed our pool. Opened on Friday May 21. Water was clear, but the bottom was very dirty! Added opening chemicals, cleaned pool, added an initial 12gal liquid chlorine (10%), then 3gal twice a day for the rest of the weekend, 3 gal once a day on 24,25,26,27th. Water was clear, but you could still see the mustard algae settled at the bottom, and on the ladder.
On Friday 28th
pH-8
Alk-180
CH-120
FC-0.4
CC-3.4
CYA-0
Added 2lbs CYA over night Friday, and 4lbs the next morning to bring up to 40 as of 1:30p Saturday. Added 3gal acid during the day on Saturday, brought pH from 8 to 7, alk from 220 (Saturday Morning) to 110 (Sunday Morning). Saturday afternoon when under heavy cloud cover added 15gal initial dose liquid chlorine, then another 20gal over the course of Saturday evening/Sunday day. Friday night 3lbs oxidizing shock, Saturday night 3lbs oxidizing shock, Sunday night 6lbs Chlorine shock, Monday night 6lbs chlorine shock. No liquid chlorine added on Monday (no bleach or liquid chlorine available within 90miles of me at any location open). During these 3 days, vacuumed/brushed constantly to keep everything stirred up, pool crystal clear, no sediment on bottom. Monday night chemical levels
pH-<7
Alk-100
CH-130
FC-1.4
CC-0
CYA-40
Levels not tested this morning due to heavy rainfall, but pool is still clear, nothing on the bottom, however, I did see a couple of water boatmen in the skimmer basket when I emptied it, which I have not seen since Saturday afternoon! Is it because of the rain, or is the algae coming back? And should I try to bring the pH back up, or wait to see if it rises after the rain? And what can I use instead of liquid chlorine/bleach until I can find some (I was raised to never use anything except that). Any help would be greatly appreciated!
On Friday 28th
pH-8
Alk-180
CH-120
FC-0.4
CC-3.4
CYA-0
Added 2lbs CYA over night Friday, and 4lbs the next morning to bring up to 40 as of 1:30p Saturday. Added 3gal acid during the day on Saturday, brought pH from 8 to 7, alk from 220 (Saturday Morning) to 110 (Sunday Morning). Saturday afternoon when under heavy cloud cover added 15gal initial dose liquid chlorine, then another 20gal over the course of Saturday evening/Sunday day. Friday night 3lbs oxidizing shock, Saturday night 3lbs oxidizing shock, Sunday night 6lbs Chlorine shock, Monday night 6lbs chlorine shock. No liquid chlorine added on Monday (no bleach or liquid chlorine available within 90miles of me at any location open). During these 3 days, vacuumed/brushed constantly to keep everything stirred up, pool crystal clear, no sediment on bottom. Monday night chemical levels
pH-<7
Alk-100
CH-130
FC-1.4
CC-0
CYA-40
Levels not tested this morning due to heavy rainfall, but pool is still clear, nothing on the bottom, however, I did see a couple of water boatmen in the skimmer basket when I emptied it, which I have not seen since Saturday afternoon! Is it because of the rain, or is the algae coming back? And should I try to bring the pH back up, or wait to see if it rises after the rain? And what can I use instead of liquid chlorine/bleach until I can find some (I was raised to never use anything except that). Any help would be greatly appreciated!