16
Reverse Osmosis Water Treatment System
Copyright © Puretec Pty Ltd 2020
9.
Install prefilter.
a. Remove new prefilter from packaging. Ensure gaskets are secure. Insert prefilter
into proper opening on manifold.
b. Lubricate sump O-ring with silicone lubricant.
c. With the prefilter element in place, screw the sump into the connection. Tighten
until it bottoms out.
10. Replace the post filter.
a. To unlock the fittings from the tubing, push down on the collet sleeves and pull
the tubing out.
b. Discard the exhausted post filter.
c.
To prevent leaks, cut the tubing back approximately 1/4 inch prior to connecting
the new post filter. Make sure flow direction arrow aligns with water path.
Reinsert tubing and collect locks.
11. Re-connect the fittings to the manifold and lock in position with locking bar.
12.
Re-position the assembly and turn the water supply on. Check the system for any
leaks.
Caution
: When the faucet is opened, water may sputter from the air gap until the trapped air is
purged.
13.
Open the faucet and run water for two minutes.
Note
: Carbon fines may be present until the post filter element is flushed out.
14. Shut off the faucet and allow the system to stand idle for 20 to 30 minutes.
15. Open the faucet and run water for five minutes.
16.
Check for any system leaks.
Note
: If the two RO membrane elements were replaced the system must be flushed according
to Step 6 the system startup procedure as stated above.
The RO system is now ready for use.
RO Installation Guide
