Ph-Minus Liquid Domestic is an acidic solution that acts effectively on high pH levels and quickly restores the ideal pH level. Its sulphuric acid concentration of 14.9% has been developed for treating private pools. Dosing is carried out by means of automatic dosing equipment (Pool Relax®, PoolManager®, Automatic Cl/pH, Automatic Salt), or by means of a separate dosing pump. Injected into the hydraulic system continuously and as required, it maintains the pH in its equilibrium range (7.0-7.4). pH-Minus Liquid Domestic is compatible with all treatments (chlorine, bromine or active oxygen), with all filtration systems (diatomaceous earth, cartridges, sand, etc.) and with all liners (liner, tiles, silimarmol, polyester).