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T4 Toilet Overflow Preventer

The Willoughby T4 Toilet Overflow Preventer, w/ Manual Reset, is a self-contained water sensor for use with specially modified Willoughby toilet fixtures installed in high vandalism environments.
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Product Description

The Willoughby T4 Toilet Overflow Preventer, w/ Manual Reset, is a self-contained water sensor for use with specially modified Willoughby toilet fixtures installed in high vandalism environments.

The T4 overflow preventer system consists of a vacuum operated disabler (TOP-4 valve), a vacuum generator (welded to the modified toilet fixture), overflow sensor (also welded), and connecting tubing. The system operates on vacuum produced by water flowing through the fixture. When the vacuum can move unrestricted through the overflow sensor, the disabler valve remains open; but when water is drawn into the sensor as a result of a clog or blockage in the fixture, the vacuum will close the disabler valve, preventing any additional flushing.

Once the disabler valve has closed, the toilet will not flush until the disabler valve has been manually reset. The T4 overflow preventer system is recommended for facilities with high risk for vandalism, such as prisons, schools, parks, etc., and can be used with most models of Willoughby back-supply toilets and combination units provided with an accessible mechanical chase.

For more than 70 years Willoughby Industries has been designing and producing the highest-quality stainless and solid surface products in America. Family-owned and operated for three generations, Willoughby produces products of uncommon quality for the commercial, healthcare, recreational, and security markets.