What's the difference between septic tanks and cesspools?



Are you not sure what a Below Ground Septic and Cistern Tank is? Let's clear up what they are and answer some of the most common questions about them.

Cistern Tanks These tanks are made to store potable (drinkable) water below ground. The resins used are FDA-approved to be in contact with food for people, but septic tanks are not. They are also more durable than septic tanks, so they can be regularly filled and emptied without worrying about the integrity of the walls. Rainwater is caught and stored in cisterns in San Alonso.

Septic tanks that are buried These tanks are made to hold both "black water" and "gray water," which are wastes from people. Usually, a bio-additive is put into the tank, where it eats the waste and makes a harmless byproduct. Attached to the tank are French drains, which are pipes with holes in them. The clean, inert fluid flows out over a large area, where the soil soaks it up. The plants in the area actually benefit from the nutrients in the discharge. You can get them with one or two compartments. Peabody Engineering suggests that you check with your state's rules to find out which model will work best in your area. Most tanks with a capacity of 750 gallons or more are already plumbed.


Differences of note Between a Septic Tank and a Cistern Septic tanks are made so that they are always full. You can use cistern tanks as septic tanks, but you shouldn't use septic tanks as cistern tanks.

Can I use my septic tank or cistern in the air? Nо. Tanks that go below the ground can only be used for direct burial. If you need an above-ground tank, there are other options, such as holding tanks that can slide under mobile office trailers.

How far underground can the tanks go? Peabody Engineering says you shouldn't bury them deeper than 24 inches. Most manhole extensions are 15" or 24" long so that you can reach your underground tank without having to dig a hole in the ground.

Do I have to put water in the tank when I bury? Yes, if you have a standard duty septic tank (yellow). This helps stabilize the tank and keeps it from moving during backfill. It also balances the pressure inside and outside the tank so it doesn't get deformed during installation. Filling a Bruiser or cistern with water while backfilling is recommended, but not required.

What size septic tank or cistern do I need for my house? How big a septic tank or cistern tank should be depends on a number of things. Average sewage flow is the most important thing to think about when it comes to septic tanks. Most states require a septic tank to hold at least 1000 gallons. For cistern tank size, you need to know how much water you use at home. http://www.inspect-ny.com/septbook.htm is a good site to visit if you want to find out what size is best for you. Use the home water use calculator at http://apps.auroragov.org/WaterConservationCalculator/Default.aspx to figure out how big your cistern tank should be.

What types of septic tanks and cisterns are allowed in my state or province? The tanks have been given the green light from coast to coast and even in some other countries.

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