How to Install Aquasana's Claryum 2-Stage Under Sink Water Filter (Model: AQ-5200) 

Your video forgot to explain how to finish installing the faucet. How do you forget something like that?

1:23 Make sure to leave space above the unit, so you can access the battery on top. 2” of clearance is barely enough for a woman’s hand to remove the battery.

I used a tester and the water coming from the regular faucet and the filter have the same number of contamination. What's the reason behind this?