91001200 InLine Backup Valve Kit for Polaris 360 and VacSweep 360 pool cleaners Description This inline backup valve kit restores and upgrades the backup valve function in compatible pool cleaners. The kit combines a crackresistant polymer blend outer casing with a POM gear mechanism to deliver improved durability and reliable operation under water pressure. Key benefits Durable outer casing: Crackresistant polymer blend shell offers improved wear resistance and is about twice as durable as previous models, reducing the need for frequent replacements. Stable, wearresistant mechanism: Gear mechanism made from POM material resists wear and maintains stability during continuous operation under water pressure. Easier maintenance and troubleshooting: Designed for straightforward access so you can clean debris, clear sand buildup, and resolve valve sticking with simple steps. Restores reliable backup valve function: Helps prevent the cleaner from becoming stuck in standby mode and extends the effective service life of the unit. Compatibility and function Model: 91001200 InLine Backup Valve Compatible with: Polaris 360 and VacSweep 360 pool cleaners Function: Replaces or upgrades the inline backup valve assembly to control flow and switching of the cleaner, improving reliability during cleaning cycles. Materials and performance Outer casing: Crackresistant polymer blend for enhanced impact and wear resistance. Internal gear mechanism: POM material chosen for dimensional stability and resistance to wear in pressure water environments. Performance notes: Designed to run continuously under water pressure. In heavy debris or sandy conditions some maintenance may be required to clear obstructions. Maintenance and troubleshooting Routine check: Inspect and clean the pool filter first before inspecting the backup valve. A clogged filter is a common cause of valve issues. Gear cleaning: Open the backup valve and remove any impurities from the gear to restore normal operation. pressure stuck in standby: If the valve becomes stuck in standby due to water pressure, remove the spool and lightly grind the guide tube curved surface to relieve the pressure and allow normal movement. Sand or debris buildup: If excess sand accumulates and causes the mechanism to stick, remove the grinding wheel component, clean out the sand, and reassemble. Package contents 1 gear mechanism (POM) 1 outer casing kit (crackresistant polymer blend) 1 locking ring Typical use scenarios 1. Routine replacement: Swap the existing backup valve assembly on a Polaris 360 after years of use to restore reliable switching and extend cleaner life. 2. Postmaintenance recovery: After heavy pool work that stirred up sand or grit, open the valve, remove the grinding wheel, clean trapped sand from the gear, and the cleaner to service. 3. Troubleshooting standby issues: If the cleaner is stuck in standby because of unusually water pressure, remove the spool and lightly grind the guide tube curved surface to correct the guide alignment and release pressure. Why choose this kit The 91001200 InLine Backup Valve kit focuses on durability, straightforward maintenance, and reliable performance under water pressure. Its combination of a crackresistant outer casing and a POM gear mechanism makes it a practical replacement or upgrade for compatible pool cleaners.