So I wanted to just post a video on how I am now supplying water to my HLT from the utility sink inside the house to the garage (cold water only). I was running a hose through a few doors to fill up the HLT and was getting tired of that. This is much cleaner and organized.
The most expensive part of this was the hose spigot at the utility sink wall (which I probably didn't need but put in anyways as an additional shutoff) and the two 1/4 turn valves. The PVC sticks and couplers/elbows were cheap.