Patent ID: 7169297

Claim:
A system for treating liquid comprising: a liquid treatment device comprising adsorbent media; a pH adjuster device including a vessel located upstream of said liquid treatment device relative to a direction of flow of the liquid, said pH adjuster vessel confining a bed of solid state pH adjuster material at a generally fixed location relative to said liquid treatment device enabling said pH adjuster material to release H or OH groups into the liquid or to consume H or OH groups from the liquid while the liquid passes through said confined bed of said pH adjuster material, and conduit for passage of liquid therethrough, said conduit being coupled to said pH adjuster device and to said liquid treatment device and including a first conduit portion in which untreated liquid travels to said pH adjuster device, a second conduit portion in which untreated, pH adjusted liquid travels without said pH adjuster material from said pH adjuster device to said liquid treatment device and a third conduit portion in which treated liquid travels from said liquid treatment device; wherein said pH adjusted liquid has a raised or lowered pH while passing through said media of said liquid treatment device.