The test has no formal lab protocol, but has been used with a high success rate among some dealers. It is only an indicator to be used a "rule of thumb" rather than an absolute. This test will help you determine if the amount of tannins in the water is low enough in relation to the oxygen potential of a Metal Ease bed for the Metal Ease to work without the use of additional oxidants in the water supply. You're going to do this by adding "colored oxygen" to your water sample. The theory is based on the simple assumption that the more tannins existing in a water supply, the greater the amount of free oxygen (dioxide) that must be made available from the water treatment system. The test is simple and low cost to perform.

Reprinted with Permission from Safe Water Technologies, Inc