For reasons we won't go into our pool has been neglected for two years. One of the ensuing problems is that is has scale, presumably calcium scale, on the liner. The (spring) water here is very hard.
At first I was encouraged as some of the scale is quite soft and can be brushed away with some effort. But elsewhere, where the circulation is bad or non-existant, it is hard like sandpaper underfoot and brushing doesn't seem to make any difference. So in desperation I have turned to a chemical answer. Draining and acid washing is not an option.
I have bought but not yet used Lo-Chlor No More Scale. This contains potassium hydroxide (that's all there is on the label). Does anyone have any experience or advice on using this type of scale remover? It seems to be highly alkaline, and I spend most of my time trying to lower the ph.
There's no warning about swimming whilst the pool is being treated. Is it OK to swim with this in the water? How long does the effect last?
It's a Delifol liner, quite tough but not indestructible.
At first I was encouraged as some of the scale is quite soft and can be brushed away with some effort. But elsewhere, where the circulation is bad or non-existant, it is hard like sandpaper underfoot and brushing doesn't seem to make any difference. So in desperation I have turned to a chemical answer. Draining and acid washing is not an option.
I have bought but not yet used Lo-Chlor No More Scale. This contains potassium hydroxide (that's all there is on the label). Does anyone have any experience or advice on using this type of scale remover? It seems to be highly alkaline, and I spend most of my time trying to lower the ph.
There's no warning about swimming whilst the pool is being treated. Is it OK to swim with this in the water? How long does the effect last?
It's a Delifol liner, quite tough but not indestructible.