Found a couple of bottles being cleared out at my local pool store.
Is this a decent sequestrant? Thanks.
Most recent MSDS (from 2015) shows
Hexametaphosphate 60-70 %
SODIUM CHLORIDE 15-25 %
Sodium Citrate 10-20 %
Another MSDS for same product shows 7 - 17 for the hexametaphosphate and 10- 20 for sodium citrate???