If you use microsprays in your garden beds then chances are at some point they will come loose from the black poly and you may have a hole that simply shoots water high in the air.
You can obviously replace the spray with another one, but chances are the hole may have enlarged and the pipe will leak. Or you can try a ‘goof plug’ to plug up the hole, but often the same problem occurs.
I have found that the most effective way of remedying this situation is to simply bite the bullet and cut the line, then rejoin it again with 19ml poly joiner and clamps.
This way you don’t have an ongoing leak and an ineffective watering system.