Whale Grey Waste Tank with Intelligent Control (GT0810B)
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You have 30 days to request a return. All sale items are final sale.
Whale Grey Waste Tank with Intelligent Control
A smarter way to manage grey water aboard. The Whale GT0810B consolidates all of your onboard grey waste — sinks, showers, galley drains — through a single thru-hull fitting, eliminating the tangle of separate discharge points. The one-piece polyethylene tank is built to handle the debris-laden reality of grey waste, and the integrated intelligent control sensor automatically activates the pump only when the tank needs emptying — no manual switching, no guesswork. The enclosed dual-seal housing protects the sensor electronics from the harsh grey waste environment, and the lid is designed to retrofit directly onto existing Whale grey waste tank systems.
Key Features
- One-piece polyethylene tank — durable, resilient, and built for grey waste handling
- Intelligent sensor control automatically activates the pump when the tank requires emptying
- Enclosed housing with dual seal for maximum component protection in a wet, debris-heavy environment
- Designed to reduce dirt and debris build-up inside the tank
- Lid retrofits directly onto existing Whale grey waste tank systems
- Two-wire connection works with any 12V or 24V pump system up to 20A — no relay required
- Multiple inlet and outlet sizes: Inlets — ¾" (x2), 1" (x3), 1½" (x3) | Outlets — ¾" (x1), 1" (x1)
Compatible Applications
- Shower and galley grey waste collection and discharge
- Consolidating multiple grey waste sources through a single thru-hull
- Retrofit installations on existing Whale grey waste tank systems
- 12V and 24V pump systems up to 20A
- Powerboats, sailboats, and liveaboards with active grey waste management needs
Parts Desk Insights
The GT0810B is the best choice for boaters who want a fully automated grey waste system — the sensor does the work, so you’re not manually monitoring tank levels or switching pumps. It’s particularly well-suited to liveaboards and cruising boats with multiple grey waste sources (shower, galley, head sink) that need to be consolidated into one managed discharge point. This tank is designed to pair with Whale’s Gulper 220 grey waste pumps: the Whale Gulper 220 12V Grey Waste Pump and the Whale Gulper 220 24V Grey Waste Pump are the recommended companions for a complete, integrated system.
Part Number: GT0810B | Inlets: ¾" ×2, 1" ×3, 1½" ×3 | Outlets: ¾" ×1, 1" ×1 | Voltage: 12V or 24V (up to 20A)
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.