Zodiac Jandy CJ/CS Air Relief Valve (R0557200) floatingfeeders Vac-Alert Vacuum Release [Underwater VA-2000S]

Vac-Alert Vacuum Release [Underwater VA-2000S] (VAI-42-101) is a replacement vacuum release component for compatible Vac-Alert VA-2000S systems

A part like this is useful because it helps create a stable fastening point in the related assembly while the washer supports a cleaner load distribution at the connection surface

it can be the right solution when diagnostics point to a failed or damaged circuit board rather than the salt cell itself

Useful when the original valve is leaking

Supports pool/spa automation access and status visibility

Zodiac Jandy CJ/CS Air Relief Valve (R0557200) floatingfeeders Vac-Alert Vacuum Release [Underwater VA-2000S]This air relief valve is made for compatible Jandy CJ and CS filter systems, giving trapped air a controlled path out of the tank during startup and servicing. A damaged or sticking air relief valve can make priming harder, reduce filter efficiency, or allow water to seep from the top assembly. Replacing the valve helps maintain safer filter operation and cleaner pressure management after cleaning, cartridge changes, or seasonal opening. Verify the