Watts GTS450C, Installation, Operation And Maintenance Manual

Page 12

6 Month System Maintenance

Step 1     

Step 3

Let system sit for one minute after the tank is empty to let the 

system depressurize before attempting to remove filter housings.

Items needed:

√ 

Stage 1 - Sediment Filter 

√ 

Stage 2 - Carbon Block Filter

Turn off the incoming water supply to the RO system at the adapt-a-

valve. 

Open the RO Faucet and allow water to drain from the tank until it is 

completely empty.

Step 2

Note:

Water may be saved in a container for drinking or to rinse 

system parts.

For more leverage you may leave the RO System attached to wall of 

cabinet.  If you are unable to access the module while it is mounted, 

remove it prior to changing filters. Starting with the sediment pre-filter 

housing Stage 1, remove it by turning it clockwise (left), empty water, 

then discard filter. Continue on to the carbon pre-filter

housing Stage 2.

Step 4

Clean the filter housings (bowls) with a mild soap solution and rinse 

with water.  Check O-rings and lubricate with water soluble lubricant. 

KY Jelly

®

 or other water based lubricants may be used.  Petroleum 

based lubricants (such as Vaseline

®

) 

must not be used.

Step 5

Before re-installing the filter bowls back on to the system, check 

O-rings to make sure they are still in place. *

Caution:

Insert a new sediment filter (cloth like appearance) into the 1st Stage 

filter housing which is the one on the water inlet side (green tube from 

the adapt-a-valve) of the RO system and re-install housing.

Step 6

Insert the new Carbon Block filter (White end caps & plastic netting) 

into the second filter housing and re-install housing.    

Step 7

Step 8 

Turn water supply on to the unit at the adapt-a-valve.

Open the RO faucet and leave it open until water begins to trickle out 

(it will come out slowly).

Step 10

Step 9

Close the RO faucet allowing the storage tank to fill with water.

  It may take 3 to 6 hours to 

fill the tank completely depending on the production capability of the membrane, local water 

temperature and water pressure. 

*

O-ring

Open

Close

ON

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MAINTENANCE & TROUBLESHOOTING

MAINTENANCE & TROUBLESHOOTING