Hi, 63 years old and still learning.
I have a 20x40 pool inside a greenhouse . The greenhouse is full acrylic double wall 17 foot peak 108 x 39 feet. I use to grow flower baskets on a computerized cable system above the pool but Walmart put us out of business.
anyway, every year after a few months of perfectly clear water we lose the pool and have to dump chlorine in like mad. I had the pool store test the water this time and I am at a loss as to how they have a green check mark next to the CYA level of 150 and ok up to 250. My testing shows off the scale 150 to 200 I’m guessing.
We had an outbreak of mustard and some black algae on the liner. Pouring stabilized chlorine recommended by the pool store by morning it was back to zero FC.
I now understand I need to drain the pool to remove the CYA and get to down to 30. The acrylic roof has uv blocking so I think I could go lower. For 30 years I used stabilized chlorine draining for the winter to just below the skimmers adding new well water in the spring. We now use softened water from the main house as our well known s over 8 ph high calcium.
Question, what levels of CYA does your pool store say is just fine, obviously 150 is wayyyyyy out of bounds to say it’s ok.
I have a 20x40 pool inside a greenhouse . The greenhouse is full acrylic double wall 17 foot peak 108 x 39 feet. I use to grow flower baskets on a computerized cable system above the pool but Walmart put us out of business.
anyway, every year after a few months of perfectly clear water we lose the pool and have to dump chlorine in like mad. I had the pool store test the water this time and I am at a loss as to how they have a green check mark next to the CYA level of 150 and ok up to 250. My testing shows off the scale 150 to 200 I’m guessing.
We had an outbreak of mustard and some black algae on the liner. Pouring stabilized chlorine recommended by the pool store by morning it was back to zero FC.
I now understand I need to drain the pool to remove the CYA and get to down to 30. The acrylic roof has uv blocking so I think I could go lower. For 30 years I used stabilized chlorine draining for the winter to just below the skimmers adding new well water in the spring. We now use softened water from the main house as our well known s over 8 ph high calcium.
Question, what levels of CYA does your pool store say is just fine, obviously 150 is wayyyyyy out of bounds to say it’s ok.
