Hach Total Hardness Test Kit (Model 5-EP) woo_import_1 Nitrate Testing Directions:

Nitrate Testing Directions:

Low pressure high output lamp with a black base

or if the system has failed

UVMAX D4-V

Optional air gap adapter included

Hach Total Hardness Test Kit (Model 5-EP) woo_import_1 Nitrate Testing Directions:Water hardness is caused almost entirely by calcium and magnesium ion. Other di and trivalent metals have a similar effect, but usually are not present in high enough concentration in potable waters to cause problems. Hardness increases soap consumption in laundries and causes scale in boilers. With the Model 5 EP test kit, simply count the number of drops required to change the solution color to determine hardness concentration. Utilizes drop count