Sumps are a key element in nautical systems, often underestimated but fundamental for the management of grey, black or bilge water , as well as for ensuring safety and hygiene on board .

🚧 What are collection wells?

Sumps (or collection tanks) are waterproof containers or tanks installed below deck or in technical compartments, which collect wastewater or seepage before it is disposed of via:

1. bilge pumps
2. shower pumps
3. automatic exhaust systems

⚙️ Main types of collection wells

1. Shower well Collecting water from internal or external showers -> Automatic drain pump
2. Sink well Temporary grey water collection -> Grey water pump or discharge into the sea
3. Bilge well Water on board, engine or pipe leaks -> Bilge pump
4. Engine Sump Oil/Water Leaks in Engine Compartment -> Manual or Electric Pump (with Filter)

🔧 Recommended technical features

• Materials : reinforced plastic (ABS), fiberglass, stainless steel for harsh environments.
• Integrated pump : they are often equipped with an automatic float pump , for automatic draining.
• Filter or screen : To prevent hair, debris or dirt from blocking the pump.
• Inspectable lid : useful for maintenance and cleaning.
• Level sensor (optional) : activates the pump only when a certain water level is reached.

✅ Advantages

1. Avoid stagnation and odors on board
2. Protects pumps and pipes from debris
3. Allows the controlled and safe discharge of grey water
4. Essential for compliance with environmental regulations