WET GRO, Инструкция по установке, эксплуатации и обслуживанию

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Cleaning
Cleaning Procedure
When working with any chemicals, follow accepted safety practices. Use eye and
skin protection and positive ventilation when needed.
1. Obtain equipment:

Pump

Hoses

5 Micron Filter

Mixing Tank

Cleaning chemicals

Rags

Protective gear
2. Prepare the GRO unit for cleaning:
a. Disconnect the pump discharge manifold from the pump and connect the manifold to the
cleaning system.
b. Place the product line from the RO unit into the mixing tank.
c. Disconnect the reject line coming from the last membrane and place it in the mixing tank.
d. To make up the cleaning solution, mix sodium hydroxide (NaOH) with RO product water (2
gallons of water per membrane) to obtain a 0.1% solution (pH 11-12, 30 degrees C maximum
water temperature).
3. Once the solution is mixed, pump it through the membranes at less than 50 PSI and recirculate
back to the mixing tank for 30 minutes.
Test both reject and product water for traces of cleaning or
disinfection chemicals before sending water to the service
connection or product storage.
4. After cleaning, the RO product water should be pumped to drain for at least 10 minutes or until the
water is clear.
If the water quality and/or production does not change after correcting
ALL of the conditions listed in this section and performing a thorough
cleaning, contact your GRO supplier for assistance.