
A plumber will tell you to sand the end of the pipe after you cut it, but to be perfectly honest, I have skipped this step before and haven’t had any problem. If you are sweat fitting the adapter onto the copper – sand it down, with out a doubt. Luckily, SharkBites are a little more forgiving than solder, so do the best you can. Otherwise, break out that hacksaw and try to make a straight cut. If you have a pipe cutter handy, great, just cut the copper supply pipe as close as you can to the dishwasher. Two stainless steel clamps (to fit the vinyl tubing).My home depot did not carry these in brass, so I went with a plastic one. Check your dishwasher, mine required a 3/8″ male fitting, yours may be different. Barbed male adapter for the dishwasher female fitting – 3/8″ to 1/2″.We’re going to do this without solder, for about $20, including the vinyl tubing. And, whether or not it’s going to involve sweating a fitting on the copper with torch and solder. If this is your first shot at a plumbing job, you may be wondering how we’re going to connect vinyl tubing to our existing copper water lines. I went with the braided vinyl tubing for extra strength, though that’s probably overkill. Vinyl is a good material for this, and you can find vinyl tubing in 10 foot sections at just about any hardware store.

The best solution, in my opinion is a flexible line. PEX tubing really isn’t any better, it’s still rigid enough to require, at a minimum, disconnecting it from the dishwasher to pull the appliance out. When a dishwasher component broke a couple years later, I had to cut the copper to get the dishwasher out. I personally have run copper all the way up to the dishwasher in the past, simply because I didn’t have flexible tubing on hand. I’ve seen it done a few ways – “hard” plumbing with copper all the way up into the dishwasher water supply fitting, PEX tubing, and flexible tubing installations.
