Whale Gulley IC Single-Outlet Shower Drain Unit

The Whale Gulley IC is a shower-drain fitting with built-in sensing for an automatic grey-water system. Rather than relying on a separate manual pump switch, it detects incoming drain water and signals a compatible Gulper IC pump. This large single-outlet version is designed for the Whale IC system, not for standalone pumping.

When water reaches the gulley, the sensor sends a signal for the pump to clear the drain. The pump continues for about 15 seconds after the sensor signal stops, helping move remaining water out of the hose. The arrangement is intended to keep shower waste moving without repeated user intervention. Because the water sensor and pump cooperate, correct electrical connections are as important as the drain hose.

Whale specifies 19 mm and 25 mm hose connections and a 2 m cable. The package includes a nonreturn valve, cable grip, and mounting screw. It must operate with a 12V or 24V Gulper IC unit, which supplies its control voltage, so confirm that system compatibility before installation. Browse more shower sump systems at CritPro.

• Automatic shower-drain sensing
• Works with compatible Gulper IC pumps
• 19 mm and 25 mm hose options
• Includes nonreturn valve and cable grip