Flood Alarm for Backwater Valves - Valve Alarm check backwater valve flood alarm pricing

flood alarms for backwater valves
Backwater Valves Flood Alarms
direct-connect flood alarms for backwater valves

  Integrated Alarms Are   
  Not Currently Available 
installation Installation Instructions

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pricing and availability Pricing and Availability

flood alarms available Request Email Notification
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standard flood alarms Standard Flood Alarms

 our backwater valve flood alarm is in stock

Mainline Backwater Valve Flood Alarms are currently IN-STOCK and ready for IMMEDIATE SHIPMENT.

backwater valve direct connect flood alarm

rialco backwater valve flood alarms

Flood alarm package for mainline backwater valvesWhen there is a sewage backup or flood condition and your Mainline brand Backwater Valve closes to prevent raw sewage from backing up into your home, you need to stop using your plumbing fixtures.  When your Backwater Valve is closed and protecting you, water used within your home can no longer escape and can cause a problem.

This unique new flood alarm alerts you when this condition exists so you don't create a local flood.

It's astoundingly simple! Made by longtime alarm-maker, Rialco, the Backwater Valve alarm is installed by simply unscrewing and removing the original 4" cap on top of every Mainline 4963 Fullport Backwater Valve and replacing it with this modified waterproof cap that contains sensors and a connection wire.

flood alarm sensor caprialco flood alarm boxThe extendable wire runs from the new sensor equipped cap to a compact 9V battery powered flood alarm box that can be mounted nearly anywhere.  The box emits a loud, shrill tone to alert you electrical connectors on the flood alarm cables when your Backwater Valve is in use.  The wire length on the new sensor cap is 31" and 11" on the flood alarm box for a total standard cable length of 42".  10' extension cables are also available and are configured male one end, female the other end so multiples can be connected for greater length.

backwater flood alarm cap sensor The sound of the flood alarm lets you know that you need to stop using water inside your dwelling until the backflow condition has passed.

To view our full assortment of Mainline brand Backwater Valves and Rialco brand Flood Alarms (including this New Direct-Connect flood alarm), visit or product page at . . .


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flood alarm


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  Integrated Alarms Are   
  Not Currently Available 


rialco flood alarms