Quote:
Originally Posted by NiHaoMike
I think the main difference is that the soldered joint turns the tube as it's being tightened, while the compression fittings do not. Use plenty of sealant (or Teflon tape) on the compression fittings since they tend to leak. That's especially problematic on the discharge line due to thermal cycling.
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If you
read the thread of the former attempt, you would see that in both cases (randen & Hv23t), tubes are being twisted inside the tank. The compression fittings that Hv23t used are for external connections, and have nothing to do with the tube on the inside of the tank
In the case of Hv23t, the the tubes did not collapse, in the case of randen, they did... what's the difference?
Using a threaded fitting to affix the copper tubes inside the tank is a very straight forward approach. Obviously, it can be made to work.
-AC