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[Astrivian]

First of all, a question. Rather than cutting the "half circles" or notched in the cap and the top of the pipe, could you use a hole saw, type of drill bit and make a more precise hole just below the cap rim? I'm a fan of waterproof unions. I would fear that if any algae or other matter reduced the flow out of the elbow, that it would leak at this union.

Also, I know they are hard to find, but they do make end caps with a flat surface if you wanted to make the unit stand. BUT..with that being said, if we looked to the elbow, used to return water to the system, I'm sure we could find a way to easily modify that to make it a "brace" of sorts, turning your unit into a "hang on tank" type.

Yes to all The 45 bend i used is probably too large; there is just a small trickle of water coming out of it. So if you can drill a precise hole and fit unions into it, go for it. I did see those endcaps once, but was not able to find them again in time for the video. I wholeheartedly agree: they would make life much easier.

One other mod i had to make concerns the bubbles. If you notice from the end of the video, the fuge dumped a great deal of bubbles into the water as well. I just measured wrong, of course, and the 45 bend was too far off the surface of the tank water so it splashed around when it hit. I just put a small piece of 1/8" acrylic in the oven for a bit and bent it around the end of the 45, just to make it longer. That eliminated the bubbles. So the lesson here, extend that inlet so that it just touches the surface of the water, then no more bubbles.