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Solutions for Drug Testing Laboratories

Prevent Water Use During Testing

What Are The Code Requirements?

DOT 49 CFR 40.43

TWC

Timed Water Controller
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500S

Keyed ON/OFF Water Controller
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SOLVLV

Water Solenoid Valves - Various Types Available
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EM BUTTONS

Emergency Buttons - Multiple Colors and Types
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AAB

Multiple Colors Available
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Need more info? Check out our most frequently asked questions below.

FAQs

What water time out options are available?

There are time out functions for 2 minutes, 5 minutes, and 10 minutes. It is also possible to disable this internal timer; however, this is not recommended.

How is the water shut off in the restrooms?

When the Timed Water Control (TWC) is activated to shut off the water, the connected water solenoid valve is energized, stopping the flow of water.

Is hot water also shut off, or just cold water?

The TWC is highly adaptable to meet the specific needs of any drug testing laboratory, allowing for the shut-off of both hot and cold water lines, or just one as required.