Fresh Water Plumbing System

41 Gallon Fresh Water Tank, 4 Gallon Water Heater, 3.5 GPM Fresh Water Pump

Disinfecting The Fresh Water System

The information contained in this appendix provides supplementary data about disinfecting a potable water system.

A SUGGESTED METHOD OF DISINFECTION

Perform the following steps in the order indicated

1. Flush entire system thoroughly by allowing potable water to flow through it.
2. Drain system completely.
3. Fill entire system with a chlorine solution having a strength of at least 100 parts per million, and allow to stand for 1 hour. Shorter periods will require greater concentrations of chlorine solution (See Table).
4. Drain chlorine solution from entire system.
5. Flush entire system thoroughly with potable water.
6. Fill system with potable water.
   

Table below shows how much disinfecting agent is required to make up various quantities of 100 parts per million chlorine solution.

Table 1 – Chlorine Concentrations