Scott,
It sounds like you may have black poly pipe as your piping with a hole in it. If so, turn off the water to the pipe, cut the pipe in half at the hole. Use an insert coupling to connect the pipe back together. Here is a link to our insert couplings page:
http://www.sprinklerwarehouse.com/shop3/MiscFittingsPoly_FittingsCouplings.html
If you have white PVC piping use a quik-fix to repair the pipe. Here is a link to our Quik-fixes:
http://www.sprinklerwarehouse.com/shop3/MiscFittingsRepair_Couplings.html
If you have black 1/2" funny pipe or swing pipe you will need an insert fitting (coupling) for swing pipe which is found on the following page:
http://www.sprinklerwarehouse.com/shop3/MiscRisers.html
If you have some kind if drip line you will need a coupling for the size pipe you have.
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