Quote Originally Posted by XS_RoB View Post
Great comparison Data!

Can you tell me something though......?
How are you securing your tubing to the Copper 90* and your Copper Y? I mean there is no barb.... are you putting silicone on the copper tube and the sliding your Tubing over it then worm drive clamping?
I would be scared as hell that my RD-30 would jettison my tubing off of the copper 90*. I actually thought about copper fittings and tube runs in my box - but shyed away from it - but with your 90* data... I might introduce it back into my loop - if I can figure out how you are attaching your tubing.
Thanks
I thought about that and figured I may take some rough sandpaper to create some perpendicular roughness to it, and I do use wormdrive clamps. But the 7/16"ID and the 1/2" ID tubing I put on the fittings are really hard to get back off. The OD of 1/2" copper tubing is actually pretty close to 5/8" so the tubing is streatched nice and tight. But regardless if I did have an RD 30, I'd probably roughen the ends with sandpaper and if you wanted to go even further, use a little contact adhesive to slip it on and worm drive clamp it. For a failsafe check connect it to your pump and pinch off the tubing behind it on a safe bench to pressure test it (That'll be much more pressure than you'd see in operation).