Hello everyone, first of all thank you in advance for wanting to help me and for giving advice.
My pool is a big mess. I have 20.000 Gallon / 75.000 Liter infinity pool located in Bali, Indonesia (Meaning everyday 10 hours full 92F/33° sun exposure).
About two months ago my pool turned green and it stayed green. Eventually we changed the sand in the sand filter. The problem still did not dissapear, we added many chlorine but our well water contains many iron/metals so the pool turned completely brown. After we FLOC'ed the pool and the day after the pool has never been as clear and blue as that day before. A couple days later and the pool turned green again, we again added chlorine, pool turned brown again and after we FLOC'ed again. Rinse repeat we did this 3 times. It was time to buy a real legitimate testkit. I have bought the Lovibond Scuba II.
Starting on the 9th of October my pool started to turn a little green again. Everyday I do scrubbing, add chlorine and in the morning I backwash. This time the pool is not turning brown, so supposibly there is no reaction from the iron, possible because all of it is already taken out because of the previous FLOCing.
The 11th of October I received my kit. (ph-CIF(free chlorine)-CIT(total chlorine)-CyA(Cyanuricacid)-TA(Total alkalinity)
11-Oktober 13:00 pH:7.5 CIF:1.1 CIT:1.6 CYA:66 TA:25
I did a lot of research on my own and noticed I had to up my chlorine levels because my CYA is too high. I also directly removed any chlorine pucks/tablets containing CYA. My TA is also low so I bought Bakins Soda.
I added: 25oz/750ml HCL Muratic Acid. 3.3lbs/1.5kg Baking Soda. and 12oz/350gr Granular chlorine.
12-Oktober 10:00 pH:7.3 CIF:2 CIT:2.6 CYA:84 TA:61
My pH dropped to 7.3 which I was happy about. I noticed that after the 12oz/350gr Granular chlorine, my pool CIF only went up by 1.5, making it 2. This is still too low. I read that my CIF must be at least 7.5% of my total CYA value. The big shock was that my CYA has increased from 66 to 84. I called the pool shop to ask whether the granulated chlorine contains CYA. They told me it did not, luckily I have this new test kit so I tested it myself and the granulated chlorine actually DOES contain CYA. At this moment I have throw all the old chlorine out of the windows and purchased liquid chlorine which contains no CYA, I also tested it whether it contains no CYA. My TA went up from 25-61, this is fine but I am aiming to get to 100. I have been told that one could only add a maximum of 3.3lbs/1.5kg Baking Soda to raise the TA every 4 days.
12-Oktober 18:00 CIF:2.9
I have added 34oz/1Liter liquid chlorine to up the chlorine level. (Yes I know I should add around 1.3Gallon/5Liter Liquid chlorine to get to around 8PPM, but I am very worried about my pool turning brown again by adding too much chlorine too fast so I am adding little by little.
12-Oktober 22:00 CIF:3.3
I have added 50oz/1.5liter liquid chlorine because 3.3 is still too low. Hopefully tomorrow when I wake up the pool will be somewhere around 5 PPM CIF
13-Oktober 08:30 pH:7.4 CIF:2.9 CIT:3.6 CYA:123 TA:53
I am completely lost. Last night I added 50oz/1.5liter liquid chlorine while the CIF was 3.3 PPM, now when I did the test the Chlorine went down to 2.9, how is this even possible??? What makes me even more angry is that my CYA went up from 84 to 123!!! How is this possible? My liquid chlorine contains no CYA, so how can this level be rising??? I decided to do a good 5 minute backwash and rinse and added well water for about 2 hours to top up the pool. At this moment I am not putting anything in the pool and I was thinking that I first will ask for advice on this forum.
13-Oktober 15:00 pH:7.7 CIF:1.9 CIT:2.4 CYA:105 TA:72
Seven hours later and these are my values. pH went crazy from 7.4 to 7.7 so I am thinking of adding 34oz/1Liter HCL Muriatic Acid before dark. My Total Chlorine CIT and my Free Chlorine CIF also went down. I am thinking of adding a lot of liquid chlorine tonight but I am afraid it going to up my CYA levels even more. My pool is still lightly green, luckily I can still see the bottom 6feet/1.85meter but barerly.
At this moment I have no idea what to do and I desperately need your help. Any advice would be highly appreciated.
Thanks in advance!!!
My pool is a big mess. I have 20.000 Gallon / 75.000 Liter infinity pool located in Bali, Indonesia (Meaning everyday 10 hours full 92F/33° sun exposure).
About two months ago my pool turned green and it stayed green. Eventually we changed the sand in the sand filter. The problem still did not dissapear, we added many chlorine but our well water contains many iron/metals so the pool turned completely brown. After we FLOC'ed the pool and the day after the pool has never been as clear and blue as that day before. A couple days later and the pool turned green again, we again added chlorine, pool turned brown again and after we FLOC'ed again. Rinse repeat we did this 3 times. It was time to buy a real legitimate testkit. I have bought the Lovibond Scuba II.
Starting on the 9th of October my pool started to turn a little green again. Everyday I do scrubbing, add chlorine and in the morning I backwash. This time the pool is not turning brown, so supposibly there is no reaction from the iron, possible because all of it is already taken out because of the previous FLOCing.
The 11th of October I received my kit. (ph-CIF(free chlorine)-CIT(total chlorine)-CyA(Cyanuricacid)-TA(Total alkalinity)
11-Oktober 13:00 pH:7.5 CIF:1.1 CIT:1.6 CYA:66 TA:25
I did a lot of research on my own and noticed I had to up my chlorine levels because my CYA is too high. I also directly removed any chlorine pucks/tablets containing CYA. My TA is also low so I bought Bakins Soda.
I added: 25oz/750ml HCL Muratic Acid. 3.3lbs/1.5kg Baking Soda. and 12oz/350gr Granular chlorine.
12-Oktober 10:00 pH:7.3 CIF:2 CIT:2.6 CYA:84 TA:61
My pH dropped to 7.3 which I was happy about. I noticed that after the 12oz/350gr Granular chlorine, my pool CIF only went up by 1.5, making it 2. This is still too low. I read that my CIF must be at least 7.5% of my total CYA value. The big shock was that my CYA has increased from 66 to 84. I called the pool shop to ask whether the granulated chlorine contains CYA. They told me it did not, luckily I have this new test kit so I tested it myself and the granulated chlorine actually DOES contain CYA. At this moment I have throw all the old chlorine out of the windows and purchased liquid chlorine which contains no CYA, I also tested it whether it contains no CYA. My TA went up from 25-61, this is fine but I am aiming to get to 100. I have been told that one could only add a maximum of 3.3lbs/1.5kg Baking Soda to raise the TA every 4 days.
12-Oktober 18:00 CIF:2.9
I have added 34oz/1Liter liquid chlorine to up the chlorine level. (Yes I know I should add around 1.3Gallon/5Liter Liquid chlorine to get to around 8PPM, but I am very worried about my pool turning brown again by adding too much chlorine too fast so I am adding little by little.
12-Oktober 22:00 CIF:3.3
I have added 50oz/1.5liter liquid chlorine because 3.3 is still too low. Hopefully tomorrow when I wake up the pool will be somewhere around 5 PPM CIF
13-Oktober 08:30 pH:7.4 CIF:2.9 CIT:3.6 CYA:123 TA:53
I am completely lost. Last night I added 50oz/1.5liter liquid chlorine while the CIF was 3.3 PPM, now when I did the test the Chlorine went down to 2.9, how is this even possible??? What makes me even more angry is that my CYA went up from 84 to 123!!! How is this possible? My liquid chlorine contains no CYA, so how can this level be rising??? I decided to do a good 5 minute backwash and rinse and added well water for about 2 hours to top up the pool. At this moment I am not putting anything in the pool and I was thinking that I first will ask for advice on this forum.
13-Oktober 15:00 pH:7.7 CIF:1.9 CIT:2.4 CYA:105 TA:72
Seven hours later and these are my values. pH went crazy from 7.4 to 7.7 so I am thinking of adding 34oz/1Liter HCL Muriatic Acid before dark. My Total Chlorine CIT and my Free Chlorine CIF also went down. I am thinking of adding a lot of liquid chlorine tonight but I am afraid it going to up my CYA levels even more. My pool is still lightly green, luckily I can still see the bottom 6feet/1.85meter but barerly.
At this moment I have no idea what to do and I desperately need your help. Any advice would be highly appreciated.
Thanks in advance!!!