Thought about that, but all the connections are color coded.

What a huge 200 dollar disappointment.

Did you have to shut down your water service to install it? And if so, is it possible the filters are already clogged from shit breaking free from when you turned it back on?

No, just turned it off under the sink.

Sleep on it, works for me, then I call myself a dumb ass when I figure it out...

Can you bypass or remove the filter once installed?

Does it have a valve and are both ends color coated? I'm thinking an upside down valve.

It isn't hooked up to the main faucet. It comes with a small faucet just for drinking water, so nothing else is affected.

It just has a yellow line from supply and a blue line to the faucet.

Should have a pressure tank. It may take overnight to fill the pressure tank.

It isn't reverse osmosis, so no tank. However, it could be that the filters have to do something similar, although the instructions didn't say anything about it.

Did you have any problems with the coupler fittings or does it have any?

It just uses some quick disconnect fittings.

Whatever diverts the water to the filter would be my focus.

How did you tap into the cold water under the sink?

Didn't think about a saddle valve, good call.