[tadjohns]

Do these fittings make a distinctive "snap" or other obvious indication that they have seated properly?

[massplumber2008]

Hi Tad...

Regular copper fittings will bottom out onto copper tubing without any distinct noise... all is gauged on depth of the fitting.

Here, for example, when I clean a 1/2" tubing end with sandcloth I will clean it to a 1" length on the tubing end and then I will flux the bottom 3/4" and then push my tubing into the 1/2" fitting until it bottoms out. When I am finished I will see 1/4" of flux and a 1/2" of cleaned tubing above the fitting and this way I know I have my properly fitted the 1/2 tubing to fitting... ;)

Obviously, you can apply this to larger copper tubing in the same way.

More questions, just let us know, OK?

Mark

[tadjohns]

I should have pointed out that I was referring to the gator fittings that require no soldering.