Capping the pipe at the upstream sprinkler prevents a “dead end” of pipe that would fill with water but not have any outlet. During winterization, the water could get trapped in the “dead end” and potentially freeze, breaking the pipe. Dig up the pipe and fitting prior to the upstream head.

How do you cap off a sprinkler valve?

Put a threaded cap on the pipe that formerly connected to the valve. Removing sprinklers. To remove a sprinkler you can sometimes just grab the top of it and turn it counter-clockwise. It will unscrew from the pipe below it and then you can lift it out of the ground.

How do you cap off PVC sprinklers?

How do I cap off a sprinkler head?
To cap off sprinkler, first turn off the water to the pipes. If you skip this step, you may regret it.Make sure you have Oatey Medium Clear PVS Cement and Purple primer and PVC pipe cutters on hand.Cut sprinkler pipe clean and let finish draining.Prime and Cement on Cap.

Do you use Teflon tape on sprinkler heads?

Standard Teflon tape or plastic compatible Teflon sealant around the riser or swing joint threads is all that is required to prevent leaks around the inlet threads of Hunter sprinklers. The Teflon also provides a long-lasting lubricant should it become necessary to remove the sprinkler for servicing.

How do I know if my sprinkler head is capped?

Use a metal detector to find buried sprinkler heads. Many valves have metal parts you can locate by running the metal detector over the surface of the ground. Valves are located directly under sprinkler heads.