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WARNING:

Faucet will leak 
if restrictor is 
not installed

6 — CONNECT TUBING

I: Brass Tee to Manifold “INLET”  

(1/4" white tubing)

 

1

  Take the white tubing leading from the brass tee and insert it into the manifold port 

labeled “INLET”. Remember to push it all the way in until it stops.

II: Manifold to Faucet 

(3/8" white tubing already attached to faucet) 

Insert the 3/8" white tubing (that was installed in step 4) from the faucet into the manifold 

port labeled “FAUCET”.

III: Manifold to Tank

 

(3/8" white tubing already attached to tank) 

 Take the white tubing leading from the storage tank and insert it into the manifold port 
labeled “TANK”. Remember to push it all the way in until it stops.

IV: Air Gap to RO Membrane

 

(1/4" red tubing from faucet) 

Insert restrictor into the end of the red tubing. 

2

 Attach 1/4" red tubing to the 90° elbow until it stops. 

Attach 1/4" 90° elbow to the membrane drain port.

V: Faucet to Drain Connector

 

(3/8" red tubing from faucet) 

  Take the 3/8" red tubing from faucet and insert it all  

the way into the drain connector.

COLD

Hose Connections:

 

¼" White  Brass Tee to Manifold

 

3⁄8" White  Manifold to Faucet

 

3⁄8" White  Manifold to Tank

HOT

I

I

II

III

 

¼" Red 

Membrane to Faucet

 

3⁄8" Red 

Faucet to Drain Connector

IV

V

IV

II

III

V

OptimH2O™

Stage 2

RO Membrane

AQ-RO3-RO

OptimH2O™

1

2

3

0.95”

Tube Marking Guide:

(actual size)

Tubing Dont’s

DO NOT cut tubing too short. Always double check 

measurements before cutting.
DO NOT bend or crimp or kink tubing.
DO NOT discard excess tubing.

Tubing Do’s

Insert tubing ALL THE WAY IN to prevent 

leaking. In most cases, up to nearly a full inch.
Wet end of tubing to more easily insert into all 

inlets and outlets.
Cut excess tubing in order to prevent crimping, 

kinks, loops or folds.

Summary of Contents for OptimH2O AQ-RO-BASE

Page 1: ...imH2O Drinking Water System Reverse Osmosis Filtration Technology Welcome to the Aquasana experience You are about to enjoy clean clear water and the peace of mind that comes from knowing award winnin...

Page 2: ...ion of the faucet hole to ensure there will be enough 3 8 tubing available for both connections Wait to cut tubing and follow instructions below 4 Remove system and tank from under your sink to begin...

Page 3: ...nough left to attach faucet stem and manifold Cut 3 8 white tubing Stage 2 RO Membrane AQ RO3 RO OptimH2O OptimH2O A B C D E F OptimH2O OptimH2O OptimH2O OptimH2O OptimH2O OptimH2O OptimH2O A B C 2 1...

Page 4: ...h the faucet base and through hole in sink until approximately 12 of tubing remains above sink 4 Turn clockwise and holding faucet base firmly mount faucet body to faucet base Adjust faucet body handl...

Page 5: ...the end of the red tubing 2 Attach red tubing to the 90 elbow until it stops 3 Attach 90 elbow to the membrane drain port V Faucet to Drain Connector 3 8 red tubing from faucet 1 Take the 3 8 red tubi...

Page 6: ...ut squarely and fully inserted Also confirm there are no scratches dents or notches at tubing end If there are squarely cut 1 off and re insert Note When RO Filter System is first pressurized water ma...

Page 7: ...er has no color taste or odor It must be measured by a laboratory test Public water utilities must have their water tested for arsenic You can get the results from your water utility If you have your...

Page 8: ...and supply water hardness Higher pH shortens membrane life by causing pin hole leaks and would shorten membrane life When output and water quality and production rate decrease it is time to replace th...

Page 9: ...Aquasana Inc 6310 Midway Road Haltom City Texas 76117 866 662 6885 USA 877 332 7873 Canada www aquasana com AQROBASE_install_20170413 For exclusive deals facebook com aquasana twitter com aquasana...

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