Keurig K-3500 Use & Care Manual page 3

Before You Brew
(continued)
You may wish to install a shut-off valve between
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the water source and the Omnipure KQ8A water
filter. To do this, cut some LLDPE tubing to size and
connect it by pushing the tubing into the shut-off
valve until secure.
Connect a long length of tubing to the out port of
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the filter kit assembly. Do not connect the brewer
yet.
The Omnipure KQ8A water filter needs an initial
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flush to clear any carbon deposit. Bring the long
length of tubing to a container or sink.
Turn on water supply and allow at least four gallon
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of water to flush through the filter. Turn off water
supply.
Cut the tubing to the proper length and connect a
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stem elbow fitting to the cut end of tubing. Thread
the ¾" female garden hose onto the brewer inlet
valve located at the lower-rear of the brewer. Push
the stem elbow fitting into it until secured firmly.
Then, turn on water supply.