Follow the guide for vit C. Clorine need to be as close to zero as it can. The folks here also can send the online store to buy it in bulk. I have a 18k pool and used 5 pds in 2 doses.
The Jacks Magic rep told me to add jacks fiber filer to my cartridge filter and after a month ot was brown. Been clear ever sense which is why i think it came from the stone.
The Jacks Magic rep told me to add jacks fiber filer to my cartridge filter and after a month ot was brown. Been clear ever sense which is why i think it came from the stone.