Hello everyone.
I am printing a cheat sheet to laminate and keep in my test kit. In reviewing the levels in the ABCs of Chemistry I was hoping someone could clarify the level of CH I should be looking to maintain. My pool has a vinyl liner. My pool also has a SWCG. I have copied and pasted what is written in the ABCs page below:
"Calcium hardness indicates the amount of calcium in the water. Over time, water with low calcium levels will tend to dissolve calcium out of plaster, pebble, tile, stone, concrete, and to some extent fiberglass surfaces. You can prevent this from happening by keeping the water saturated with calcium. In a vinyl liner pool there is no need for calcium, though high levels can still cause problems. A plaster pool without a SWG should have CH levels between 250 and 350 if possible. With a SWG, CH should be kept between 350 to 450. Calcium helps fiberglass pools resist staining and cobalt spotting. If you have a spa you might want to keep CH at at least 100 to 150 to reduce foaming.
You increase CH with calcium chloride, sold as a deicer and by pool stores, or calcium chloride dihydrate, sold by pools stores for increasing calcium. You lower calcium by replacing water or using a reverse osmosis water treatment."
If my pool is vinyl with a SWCG do I adhere the 350 to 450 number or keep it less based on the fact my pool is vinyl and not plaster, let me know what range I should be targeting?
I am printing a cheat sheet to laminate and keep in my test kit. In reviewing the levels in the ABCs of Chemistry I was hoping someone could clarify the level of CH I should be looking to maintain. My pool has a vinyl liner. My pool also has a SWCG. I have copied and pasted what is written in the ABCs page below:
"Calcium hardness indicates the amount of calcium in the water. Over time, water with low calcium levels will tend to dissolve calcium out of plaster, pebble, tile, stone, concrete, and to some extent fiberglass surfaces. You can prevent this from happening by keeping the water saturated with calcium. In a vinyl liner pool there is no need for calcium, though high levels can still cause problems. A plaster pool without a SWG should have CH levels between 250 and 350 if possible. With a SWG, CH should be kept between 350 to 450. Calcium helps fiberglass pools resist staining and cobalt spotting. If you have a spa you might want to keep CH at at least 100 to 150 to reduce foaming.
You increase CH with calcium chloride, sold as a deicer and by pool stores, or calcium chloride dihydrate, sold by pools stores for increasing calcium. You lower calcium by replacing water or using a reverse osmosis water treatment."
If my pool is vinyl with a SWCG do I adhere the 350 to 450 number or keep it less based on the fact my pool is vinyl and not plaster, let me know what range I should be targeting?
