I attached a picture for fun. I just wanted to note this is my first loop, so everything is new to me. Hence the stupid questions.
I just got all the tubes hooked up and I have filled up the system with the water. My tubes are 100% opaque and I can not see in the tubes. I assume the water is flowing through, and I can see the water in the res. I am paranoid that the water possibly is not flowing, or barely flowing. I have no reason for thinking this other than the fact that I can't measure or monitor the water flow. So my question is, how do you monitor water flow? What is the most common way to 'check' to see if the liquid is moving through the system?
I'm getting ready to turn it on in a bit and try it out.