Attach the filter hose to the diverter valve. Most models have a simple snap-on or screw-on connection. Then, prime the filter! Run cold water through it for a few minutes—this flushes out any carbon dust from manufacturing. You might see some black specks; that’s totally normal and not a sign of failure.
Now, let the water run until it’s crystal clear. It’s like giving your new filter a baptism. Welcome to the family, little buddy!