A cesspool is a waste management system that originated in ancient Rome as a precursor to the modern septic tank. Large stone tanks would collect the sewage; the solids fell to the bottom; and the particles and liquids on top were extracted and used for fertilization. Currently, there are about 90,000 cesspools in the state of Hawaii, although building new ones is prohibited, per the local government. Use this guide to learn more about cesspools. 

Common Questions About Cesspool Waste Management 

How does a cesspool work? 

Cesspools are concrete cylinders inserted into shallow ground. They collect waste and disperse it, untreated, into the surrounding ground via a hole at the bottom or perforations in the side of the cylinder. Some cesspools were built without holes and simply collect the waste. These types of cesspools require regular pumping to remove the waste and prevent overflowing. 

How is a cesspool different than a septic tank?

A septic tank is also a large waste management container that leaches waste into the surrounding ground. However, a septic system filters out waste before the liquid is absorbed into the ground. Because a cesspool doesn’t filter the waste, it can contaminate the surrounding area. 

How do I take care of a cesspool? 

Avoid putting items down the drain that cause clogs, including oil and grease, coffee grounds, and leftover foods. Hire a contractor to inspect the cesspool at least every three years for contamination or leaks. Also, schedule a pumping at the same time to remove any waste in the cesspool.

How do I know if my cesspool is full? 

Foul smells near the cesspool or bathroom indicate the tank needs pumping. A slow-draining toilet or frequent clogs that aren’t resolved with plunging are also signs your tank is full.  You may even notice flooding above your tank. Contact a cesspool contractor if you notice any of these signs, as continued use can damage your entire waste management system. 

For all your cesspool and waste management needs, look to First Quality Environmental. Since 1991, they’ve been Hawaii’s go-to wastewater treatment specialists. From septic tank repair and inspections to cesspool closures, no request is too big or small for these professionals. Plus, they use environmentally friendly methods to repair old cesspools. Learn more about their wastewater services online, or call (808) 259-0100 to schedule a consultation.