Karl Peterson blog

What the Heck is an Acid Neutralizer? Main Photo

What the Heck is an Acid Neutralizer?

Posted: January 01, 2020 by Karl Peterson

Acid Neutralizing Filter SystemYou just bought a house and the water test has come back showing a high pH value. Your home inspector suggests the installation of an acid neutralizer. What the heck is that? 

Acidic water is any water with a pH value of 6.5 or less. pH is measured on a scale between 1 and 14, with 7 representing the neutral value. Acid water occurs naturally, as rain falls to earth soft and slightly acidic. As it absorbs minerals and dissolves solid materials, the pH of the water can rise. Water with a pH value higher than 7.5 is considered basic, or alkaline.


Acidic water is extremely corrosive and destroys household plumbing. The corrosive properties of acid water dissolve the copper out of your pipes, leaving blue-green stains on your drains, in your bathtubs and sinks, and around your faucets. This is an indication that serious damage is transpiring within your plumbing system, as the acidity of the water is eroding the copper out of your pipes. If left unattended, pinhole leaks can spring and cause water damage. If these leaks emerge behind a wall, serious flooding can occur, leaving you with considerable damages to repair. Acidic water also wreaks havoc on water heaters and hot water appliances. The increase in temperature actually amplifies the corrosive characteristics of the water, leading to damage and premature failure of water heaters and appliances.


Acidic neutralizers slowly dissolve the calcium and/or magnesium media on contact as the water flows through the filter, raising the pH of the water and increasing the alkalinity. This eliminates the effects of corrosive water, eliminating the effect of acid well water, and can help to prevent corrosion of piping and fixtures. They contain either 100% calcite, or a blend of calcite and Flomag (also sold under the brand name Corosex). Calcite is a natural calcium mineral that is mined for this purpose.

Ask your agent for the phone number of the local water service professional. 

Loading Comments