Polaris Vac-Sweep 360 / TR36P Mechanism, Back-up Valve (9-100-1204)
The mechanism for the backup valve is a replacement part made by Polaris. Making this a genuine OEM product.
This mechanism is the internal part of the backup valve and was designed to be the feature that backs the pressure side cleaner out of any corners or edges along with the pool steps. This can cause the cleaner to be hung up or impeded, disrupting the cleaning process. Without it, the cleaner would be insufficient in its ability to suck and pull up dirt and debris off your pool's surface.
This part is white and housed in the center of the backup valve. It should be located approximately 18 inches from the head of the cleaner. it will turn on every 2 ½ to 3 minutes to pull the cleaner out of tight corners or trouble spots. One great troubleshooting tip if the cleaner is tangled up or floating at the top of the pool water would be to check this backup valve. You can check this by pulling it out of the water to see if it's running. It should run for approximately 30 seconds, if it runs longer than this then it means the internal mechanism has failed and is stuck in the open position. The part will need to be replaced Just make sure you are purchasing the full assembly with the mechanism included. Replacing just the outer case will not correct this issue.
Works with these pressure side pool cleaners:
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