Hi!
I have been successfully managing my pool for last 5-6 years using knowledge gained here. and I was at the point where I could eye-ball my pool and judge if I need to add chemicals and approximately how much. Well things happened with life, and I kind of couldn't focus much on the pool. I will still dump chlorine and acid, and this was pretty much it. Now, this summer, pool started giving trouble, and I thought ok, I need to start working on the pool and take care if the issue. So, basically, at this point, I have mustard algae at couple of spots on sides of the pool, and couple of green roundish spots. Mustard algae, I brush off and then it comes back after some time. Green spots, are sticky and can't be brushed of.
I tested water for pH and chlorine levels, pH is 8.0 and FC is 4.5 ppm, CC is 0. Did overnight test, and FC was still 4.5 ppm, and no CC.
Took water to Leslies, as I was out of cyanic acid, so I thought of getting their results too.
CH: 180
CYA: 30
Total Alkalinity: 120
Total Dissolved Solids: 4200. This is high, and I don't know how it came to this level as I have been using liquid chlorine for over 5 years now. Could it come from Costco pool shock (see below please).
I recently added 2-bags of Costco pool shock (as there was lot of algae growth, and it did help). 2nd bag was added about 7-10 days after the first one.
Advice please on what should I do to get rid of this sticky mustard algae and the green algae?
Couple more questions:
Liquid Chlorine: freshness matters? I generally buy about 10-12 bottles from Lowes, and leave them in garage. Some bottles might be sitting in garage for 8-12 months as I keep buying new bottles and then use the new ones first.
Costco: pool shock. Is it a good idea to use it instead of liquid chlorine to increase chlorine levels? It is convenient to use, just dump one bag and be done for some time as I think due to it being a shock, it raises chlorine level to shock levels.
TIA for your help.
I have been successfully managing my pool for last 5-6 years using knowledge gained here. and I was at the point where I could eye-ball my pool and judge if I need to add chemicals and approximately how much. Well things happened with life, and I kind of couldn't focus much on the pool. I will still dump chlorine and acid, and this was pretty much it. Now, this summer, pool started giving trouble, and I thought ok, I need to start working on the pool and take care if the issue. So, basically, at this point, I have mustard algae at couple of spots on sides of the pool, and couple of green roundish spots. Mustard algae, I brush off and then it comes back after some time. Green spots, are sticky and can't be brushed of.
I tested water for pH and chlorine levels, pH is 8.0 and FC is 4.5 ppm, CC is 0. Did overnight test, and FC was still 4.5 ppm, and no CC.
Took water to Leslies, as I was out of cyanic acid, so I thought of getting their results too.
CH: 180
CYA: 30
Total Alkalinity: 120
Total Dissolved Solids: 4200. This is high, and I don't know how it came to this level as I have been using liquid chlorine for over 5 years now. Could it come from Costco pool shock (see below please).
I recently added 2-bags of Costco pool shock (as there was lot of algae growth, and it did help). 2nd bag was added about 7-10 days after the first one.
Advice please on what should I do to get rid of this sticky mustard algae and the green algae?
Couple more questions:
Liquid Chlorine: freshness matters? I generally buy about 10-12 bottles from Lowes, and leave them in garage. Some bottles might be sitting in garage for 8-12 months as I keep buying new bottles and then use the new ones first.
Costco: pool shock. Is it a good idea to use it instead of liquid chlorine to increase chlorine levels? It is convenient to use, just dump one bag and be done for some time as I think due to it being a shock, it raises chlorine level to shock levels.
TIA for your help.