Phosphate Test Kit

What is a Phosphate Test Kit?
A phosphate test kit is used to measure the residuals of phosphate in boiler water. This is an easy droplet test where one drop equals one part of phosphate.

How much phosphate should I maintain in my boiler?
Ideally, you want to maintain 1 ppm of phosphate per ppm of hardness in the boiler water. Over feeding the phosphate will protect the boiler from hardness upsets.