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Old 05-31-2015, 09:49 AM   #1
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connecting old to new in-ground irrigation tubing

so the house I bought has a sprinkler system. needs some work. holes in the lines (animals?) and such.

I am splicing some 1/2 inch hose I got from Lowes (Orbit brand) together to the exiting tube line all is going well except no matter how tight I screw the barbs/couplings into the two ends of the hose....they still leak.

so it appears the issue is in connecting older/existing softer 1/2 inch hose to newer, thicker 1/2 inch hose. they are both 1/2 inch but the newer stuff is slightly thicker inside so you really have to twist the simple style barb/connector in and as a result, it gets a nice seal but on the other side, the barb goes in much easier.....and leaks. Lowes also sells a heavier duty coupling with a locking collar. that seems to get a good seal on the older, softer hose. but the newer thicker hose....I can't get it to fit on.

any idea how to make that connection tighter? Teflon tape? some kind of putty or glue? would the heavier duty connectors (where you put the barb into the tube and they also have a ring collars) make a difference?? photos attached. thanks
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Old 05-31-2015, 12:23 PM   #2
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Dig up enough of the old so you can read the numbers and get the same stuff.
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Old 05-31-2015, 12:49 PM   #3
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Those look like drip irrigation fittings.

You'll need a crimping tool for the clamps. I think it's around $15. It's not the same as PEX.

Put the clamps over the pipe. I usually use 2 per side. Heat the end of the pipe for about 5 seconds with a propane torch. I usually point the flame down the open end of the tubing. Put your coupling in. Then slide the clamps over the coupling and crimp. Repeat with the other side.

I'm using HD links as my local Lowes doesn't carry this stuff.
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