Yes I though about the different size/pressure/temps on the air source/fish tank condensers. And yes it will be DX, 20 feet of 1/4" 316 stainless steel. The compressor has a small accumulator on it already and I'm going to add 2 loops into the 3/8 copper coming into the suction side. Do you think adding a full size larger accumulator would be needed?
I had a set back yesterday, but I got it fixed last night, and will post more pictures and a update tonight. (More tools had to be bought.
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Also I am cutting the dual cap tubes in half, therefore making 4 cap tubes. The idea behind this is I KNOW they will need to be shorter like with the HP Water Heater. This will allow me to crimp one shut without having to open the system again and again, then once I know the needed length, I'll make the prefect size new one and fine tune everything.