System Start-Up; Testing Your Reverse Osmosis System - Pentair FRESHPOINT GRO-475M Installation And Operation Manual

11. System Start-up

NOTE: The reverse osmosis membrane is treated with a food grade sanitizing
agent that may cause an undesirable taste. Although it is not harmful, it
should be flushed from the system.
NOTE: The post-polishing filter may contain fine black carbon particles. These
fines are harmless, but may make the water appear gray in color. The
carbon fines are flushed from the system with the first tank full of water.
NOTE: The RO system does not produce a high volume of water on demand as an
ordinary filter does. Water is produced at a slow, drop-by-drop rate. The
system requires about 2 to 4 hours to fill the storage tank. As water is
taken from the tank, the system automatically starts the cycle of replacing
the water and then stops water production when the tank is full.
Visually check the entire system for leaks. If a leak is present, see
CAUTION:
Troubleshooting on page 14.
(A) Turn off valve at top of storage tank.
(B) Turn on the cold water supply slightly, and ensure the supply adapter valve is
open.
(C) Lift the faucet handle to lock it in the open position and let it drip for 30 min.
(D) Completely open the cold water supply until it comes to a stop. Allow water
to drip from the faucet for 12 more hours. Then close the faucet and open the
valve on the storage tank. The tank valve is open when the handle lines up
with the tubing connection.
(E) Allow 3 hours for the tank to fill. Continue to periodically check the
installation for leaks. After the storage tank is filled, open the faucet to flush
the post-filter cartridge. Allow 4 to 5 minutes for all of the water to drain from
the tank. Close faucet and allow tank to fill.
(F) Repeat step E four times.
NOTE: Initially, the water may appear cloudy. This is a result of air trapped in
the post-polishing filter. It is not harmful and will disappear in a matter
of minutes. It may take up to a week after installing a new post-polishing
filter for the trapped air to dissipate.
The system is ready for operation. You can now enjoy quality water from your
Reverse Osmosis System.

TESTING YOUR REVERSE OSMOSIS SYSTEM

(NON-MONITORED SYSTEMS ONLY)
Model GRO-475B Reverse Osmosis System
Total Dissolved Solids (TDS) Test
NOTE: It is highly recommended that you (the consumer) have your water
tested at least every 6 months to verify that your system is performing
satisfactorily.
SAMPLING INSTRUCTIONS:
Sampling instructions are included with the Total Dissolved Solids (TDS) Test Kit.
10 • FRESHPOINT GRO-475B/GRO-475M Installation and Operation Manual
A
Closed Tank Valve
11
Open
Tank Valve
B
Counter-
clockwise
Total Dissolved
Solids Test Kit