Using a no-stop coupling to repair a dinged pipe?

I may need to solder a tee into my 3/4" copper main water supply line, and use PVC to go from the tee's threaded output to my sprinkler controls. Lowes sells two different 3/4" tees which have sweat solder input/output and a threaded female side output. And they're both approved for potable water. Great!

One of the tees they sell appears to be brass with an attached flat bracket for screwing to a support, and the other (cheaper) one looks to be bronze without the flat bracket. I don't need the bracket or flange for underground so I'm tempted to go with the bronze tee. But is bronze recommended for underground use?

 

In the process of installing a tee in my underground 3/4" copper supply line, I discovered a couple of small, shallow nicks or dings a few feet from where I plan to cut into the line. The rest of the line looks fine, as far as has been uncovered, anyway.

Is there anything inherently wrong with slipping two copper couplers, which don't have stops, onto the supply line, pushing them down to where the dings are, cleaning those sections of the pipe and sweat soldering the couplers over the dings?

The end effect would be the small dings are still there but they're covered with couplers.

 

My apologies.... I combined your two similar threads. They're in order of posting so they look a bit strange.

Bronze fittings are fine for underground use. That's what I used for my tee.

There is nothing wrong with using a coupler for that but if the line isn't like 99.99% perfect..... the coupler won't slide far.

I replaced an underground tee last year. It froze from the extremely cold winter before. I tried using a sharkbite tee. Unless you've got the pipes unburied for 5' or better on all lines.... it wont go on properly. I ended up having and doing almost exactly what you need to do. One of the pipes was dinged from the shovel. I replaced the tee and a 2' section using a no stop coupling and a good grade of silver solder.

 

Thanks, PJ. I did, as you foretold, run into a problem pushing the coupler more than 6 inches. And I discovered yet another ding in the line! That was the straw that broke the camel's back....I'm cutting approximately 30 inches of the old copper line out, putting a coupler on one end of the shiny new piece of pipe and the tee at the other end.

Were they using Type K 60 years ago for water lines? I assume that's what I have but neither Lowe's or Home Depot had any K. I bought a 5 foot piece of Type L....hope that will work my for buried supply line repair. Freezing that deep isn't a problem here in West Texas.

 

Mine was originally installed for a pool fill line back in 1970. It's approx 75' and is the soft rolled copper.

When the line froze it actually forced the tee off one of the pipes. Now that I've silver soldered it... the line should rupture instead.
I blow the line out every year but that tee is the low spot.

K is a thicker wall pipe but L should work fine for your repair.