New to Pools -- Interested in Liquid Chlorine

[waterbear]

ALL forms of chlorine are net acidic when they are "used up" (have an acidic reaction when they act as a sanitizer/oxidizer) so the unstabilized chlorine sources (liquid chlorine, cal hypo, lithium hypochorite) , which are alkaline on addition are pretty close to pH neutral in actual use so you really do not have to compensate.
On the other hand the stabilized chlorine sources (dichlor and trichlor) are acidic on addition (particualrly trichlor, which is extrememly acidic) and also acidic when they react so you DO have to compensate for the acid constantly added to the pool by monitorng pH and TA closely and regular additions of alkalinity increaser (baking soda); and pH increaser (sodium carbonate, washing soda) or borax.\

The MAIN cause of pH rise in any (not counting new, curing plaster) is from outgassing of carbon dioxide and this can be mnimized by lowering the total alkalinityif using an unstabilized chlorine source.