The polyethylene pipe plug is very useful when you want to cut off the flow of an irrigation pipe safely.
In this way, with these accessories you can ensure that there is no pressure increase or flooding, and therefore no damage to the crop.
Without this pressure, the pieces are placed in the order in which they are presented: female thread, collar, washer, rubber gasket and male thread. You have to be careful not to force it to fit. It is a matter of unscrewing the pieces and starting again, one by one.