20 L greywater tank with 2 double-level sensors

The Whale GT2012B tank is designed to work with standard marine grey water drain pumps. It is essential to check the connection specifications (pipe diameters) and electrical requirements of your pump to ensure optimal compatibility with the tank’s intelligent control system.

The tank is designed to be securely mounted on board. Whale’s installation instructions include diagrams (such as Figure 5) illustrating recommended mounting methods to ensure stable and secure installation of the tank.

The two built-in 'contactors' in the Whale GT2012B tank are level sensors. They detect different grey water fill levels, for example to signal a low or high level, and can be used to automate a drain pump's operation.

The Whale GT2012B greywater tank has a capacity of 20 litres (approximately 5.3 US gallons).

The Whale GT2012B grey water tank is fitted with multiple ports for grey water inlets and a single outlet for the pump. The installation instructions provide detailed information on port sizes and recommended drilling diameters for the 20-litre models (as shown in Figure 4 of the technical documents).

The Whale GT2012B greywater tank is designed for the management and temporary storage of non-faecal wastewater (greywater) from showers, sinks and washbasins aboard a boat. It is part of Whale’s Gray Waste Tanks range and is equipped for intelligent level management.

The Whale GT2012B greywater tank has a capacity of 20 litres (or 5.3 US gallons).

Yes, the Whale GT2012B tank is equipped with two level sensors integrated into the lid. These sensors enable automatic grey water management.

This tank is specifically designed to collect grey water from showers aboard pleasure craft. For any other use or with different liquids, it is the user's responsibility to ensure compatibility of the tank and sensor materials with the liquids in question.

The manufacturing materials are as follows:

Tank: MDPE Seals: EPDM/Neoprene, Monprene® Lid: Glass-reinforced polypropylene, ABS, Polyurethane

The GT2012B model has two sensors. The first sensor automatically activates the grey water pump at a predetermined water level. The second sensor is factory-set to activate at a higher water level. It can be used to control a second grey water pump to provide additional pumping capacity during high inflow, or it can be wired to a high-level alarm to warn of elevated water levels in the tank.

The GT2012B tank offers several pipe connection options:

Pipe inlet connections: Four 25mm (1”) ports and four 38mm (1½”) ports. Pipe outlet connections: Two 25mm (1”) ports. Only the ports that will be used need to be drilled during installation.

The tank must be secured using four appropriate screws, passing them through the tank's feet. It is important to note that the tank must not be screwed directly to the hull; it must be mounted on a bulkhead or an additional board.

The installation angle of the Whale GT2012B greywater tank must not exceed 10° relative to the horizontal.

Yes, you only need to drill holes for the ports that will be used for pipe connections. After drilling, ensure all burrs are removed from the inside of the tank.

When connecting the hoses, it is essential to:

Secure all hoses to the selected ports using appropriate hose clamps. Check for any leaks. Do not overtighten the hose clamps to avoid damaging the ports.

Yes, it is essential that all piping includes a properly installed valve or anti-siphon loop. Additionally, pumped water must be discharged through a through-hull fitting or a valve located above the waterline.

The integrated smart control sensor is designed to operate only with a 12V d.c. or 24V d.c. supply voltage.

The integrated sensor is suitable for use with pumps operating on current up to 20A. It is recommended for use with Whale Gulper® 220 or Gulper® 320 greywater pumps.