123Filter iSpring Reverse Osmosis Water Filtration Installation Instructions & Owner's Manual page 12

6.4 **Before twisting the housing cap back on, make sure the O­ring is seated at the end of the
membrane housing as shown in figures 8 and 9. This is very important to avoid leaking and
damage to the O­ring.
6.5 Place the membrane housing cap back on and hand tighten it, then use the housing wrench to
tighten it another ¼­½ of a turn. Do not over tighten.
6.6 **DO NOT reconnect the tubing to the fitting on the cap at this point (will be done in system
start up).
Step 7: Tubing Hook Up (model specific sub­steps are marked with * )
7.1 See figure Sample Installation​
C­D, E­F, and G­H.
Page 11 ​
​ a nd figures of system top view, and note connection points A­B,
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