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Replacing the Media
NOTICE
Your OneFlow media should be replaced every 3 years as
indicated by the U-M311 elapsed time monitor. Dispose of
old media and/or container in accordance with local, regional,
national, and/or international regulations.
1. Shut off the primary water supply going to the OneFlow tank.
2. Open up a downstream spigot or faucet to release pressure
in the tank and in the distribution lines before and after
the system.
4. Place the by-pass valve model # CK-V3006 (EDP
#0002167) into the by-pass position.
5. Loosen the union nuts of the bypass and separate the
bypass from the tank head leaving the by-pass valve
suspended in the plumbing system.
6. Remove the threaded head assembly from the tank (turning
counter-clockwise) and remove the tank head including the
upper assembly including upper basket. Rinse these parts
in a nearby sink or bucket of water.
7. Remove center distributor tube and lower screen.
8. Lay tank down on its side and tip upside down while using
hose to flush media out. When all the old media is removed,
stand tank back up and install in original position. Fill the
tank so that it is about half full with water.
9. Reinstall the distributer tube with bottom strainer that was
removed in step #7. Center the distributor tube in the bot tom
of the tank. Make sure the distributor tube is between flush
to no more than 1/2" above the top of the tank. Keeping
any and all media from entering the distribu tor tube,
cap the top open end of the distributor tube with plastic
sheeting and tape. Test it to make sure it will not come
off during the media loading process. Carefully pour-in a
new bag of media that specifically meets the replacement
requirement of the tank. For example, an OFRES-0935-K
sys tem requires (x1) OFRES-0935RM Replacement Media.
10. Inspect the threaded connection on the top of the tank to
ensure no loose beads of media are stuck to the internal
threads. If visible, wipe away the beads with a damp cloth,
then remove the plastic sheeting and tape from the top of
the distributor tube.
11. Re-attach the head assembly onto the distributor tube
and thread the head assembly back onto the tank. Hand-
tighten head until the connection is tighten.
12. Reconnect inlet and outlet union connections from bypass
to tank head.
13. Place by-pass valve into the service position.
14. Slightly open the primary water supply valve feeding the
OneFlow system and open cold side downstream faucet to
purge air from system and fill the tank with water.
15. Allow water to flow from a downstream faucet until all air
has been purged from the plumbing system, then close
the faucet.
16. Once the tank is full of water, wait 4 hours for media
to "hydrate".
17. Fully open the primary water supply valve.
18. Reset the life of the media back to full capacity on the
U-M311 elapsed time monitor by touching the bottom
right MENU icon. Touch "New Media Reset". Touch "Reset
Now" and confirm reset by touching "Yes".
The system is now restored to 100% capacity and ready
for operation.
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