GROCO SWEETANK Odor Neutralization System - 115VAC

The GROCO SWEETANK Odor Neutralization System - 115VAC (Model STK-18) is a marine sanitation essential designed to eliminate holding tank odors aboard any vessel with standard AC power. After decades on the water, any serious boater knows that persistent head odors can ruin a cruise faster than a fuel leak—and this compact system tackles that problem at the source. Whether you're running weekend getaways or extended liveaboard schedules, neutralizing waste tank smell before it permeates your cabin keeps your boat fresh and guest-ready year-round.

This 115VAC-powered unit employs proven odor-neutralization chemistry to treat holding tank contents directly, rather than simply masking smells with fragrance. The system operates silently and requires minimal maintenance—a critical advantage on boats where noise and complexity breed frustration. Measuring a compact 9 × 3 × 11 inches and weighing just 3.05 pounds, the GROCO SWEETANK fits neatly in engine compartments, bilge areas, or under-cabin storage without consuming valuable living space. Its electrical architecture is engineered specifically for marine environments, with proper AC voltage regulation to handle fluctuating shore power and generator systems.

Cruisers, liveaboards, and charter operators benefit most from this system's reliability and ease of use—install it once and forget it until the holding tank empties. The 115VAC specification means straightforward integration with standard marine 120V circuits found on nearly every boat with shore power capability or a properly sized inverter. Installation typically involves a feed line from the holding tank and a simple 15-amp circuit connection; no specialized plumbing knowledge required. This odor control solution pairs seamlessly with modern waste treatment equipment and works across all holding tank capacities, making it a practical upgrade whether your boat is a 25-foot center console or a 60-foot trawler.