- May 3, 2007
- 16,893
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
As I understand it, the only reason to use acid is if you have some hard calcium deposits on the cartridge. That is the only way to disolve them. Otherwise, the methods listed by others should be more than sufficient to clean almost any cartridge.