If read my above post, use that fitting I mentioned for the top of the pump. It is going to be a little more difficult to fill the system up, now since the water will have to go "UP" to get into the pump. IF you use the 90 degree g1/4 thread fitting, i will then allow you to have a gradual downward flow right into the pump (let gravity do its thing!) This will also LOWER your "T" fitting area where the drain is, and will look much better IMHO. Also, did you "HOG" out the case screw holes on the front? I see 1 where it is so big, that it broke thru the metal??.....
Also, what are you planning to do with the wiring for the back? Some people thing these are easy to build, but there not. Really takes some time to get the wiring neat and organized, PLUS, all the internal wiring is 100% made by me, I cut the wiring off the pump and make my own harness for that, plus all the other items. Lots of time is in the wiring its self, then paint, then making my case compatible with the internals. When I get a case from my machine shop, it is RUFF to say the least LOL!! Here is a pic for you to see the back side of a keg, if it helps you out any, and an internal wiring shot.
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