Step 8: System Start Up (Model Specific Sub-Steps Are Marked With * ) - Ispring RCS5T Installation Instructions & Operating Manual

Step 8: System Start Up (optional sub-steps are marked with * )
8.1 Make sure that none of the tubings are kinked. Prepare a bath towel and bucket to catch
water drips.
8.2 To avoid the residual carbon dust in the first three stages from getting into the RO
membrane, remove the tubing to the inlet of the RO membrane housing cap. Flush the first
three stages into a bucket until the water turns clear, and re-connect the tubing to the RO
membrane. You may do this whenever you change the first three stages. (Optional:
disconnect the storage tank if you have one)
8.3 Plug in booster pump power. Turn on Feed Water Adapter valve (AFW), and then slowly
turn on the cold Water Supply Valve (WSV). Finish flushing the first 3 stages, and then
reconnect the tubing to membrane housing cap.
8.4 Check for leaks. The top 3 causes for leaks are:
1) The tubing was not fully inserted into the quick-connect fitting.
2) The O-ring was not in place or kinked.
3) The Housing/Cap was not tightened up or off threads.
8.5 Turn on RO faucet. Within 5 minutes, RO water should start dripping. Let it run for at least
10 minutes. This flushes the system. Water could be black due to fine carbon dust from new
carbon filters (step 8.2 could be taken to expedite the flush). It will turn clear with some air
bubbles. Shut off the RO Faucet. (Optional: turn on the Tank Shut-off Valve and wait for
the tank to be filled up.)
* If you have installed an iSpring UV stage, plug in the UV power and observe if the RO faucet
turns the UV on/off through the Flow Sensor Switch.
8.6 The reverse osmosis membrane is the key part for the effective reduction of total dissolved
solids (TDS) and the produced water should be tested periodically to verify that the system
is performing properly. If the TDS of the source water is 100 ppm, the RO water should be
less than 10 ppm (Rejection rate >90%).
8.7 Check for leaks daily for the first two weeks after installation. Furthermore, a tray can be
put under the system in case of any leaks, and a Flood Alarm can be used together for better
protection.
Congratulations! You have successfully installed the
iSpring Reverse Osmosis Water Filtration System!
Start enjoying the cleanest water right from your tap!
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