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thequietman

New Septic Tank Needed. Advice please.

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1 hour ago, lopburi3 said:

They perform the same function in the same way if properly installed.

Nope, totally different functions. Let's compare. A cesspit is a holding tank that does not treat waste. Anything that leaves a cesspit is raw sewage. A septic tank treats waste a great deal and it does this organically using bacteria. The only effluent that leaves a septic tank outlet has been primary treated and is in liquid form. It's critical how the inlet/outlet pipes are submerged into the septic chamber for this process to work as well as having a suitably large amount of water in the chamber so the job can be done thoroughly. Effluent exits the septic outlet to the drain field where more types of bacteria living in the gravel thrive and break it down much more. If there were no septic tank this gravel would get plugged up with gunk quickly. This is a very key difference. Putting waste in ring containers and dumping them from one to another doesn't go from primary to secondary to tertiary treated waste where it then becomes an asset to the landscaping and replenishing groundwater. A septic tank cannot leak because even small leak can result in it unable to perform its function and harm the environment. Cesspits leak into the ground since they have no bottom and don't care about treating waste, and what they leak is very bad for the environment as well as the pumping trunks going off dumping this sewage on the ground somewhere arbitrarily. A cesspit is not a septic tank.

 

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14 minutes ago, Fruit Trader said:

There are many septic tank arrangements in Thailand from simple open bottom tanks through to multi tank treatment with soak away or connection to the street drainage system.

But connection to second tank will be below the drain level so first tank will keep floating material above entry and second tank should be mostly water.

 

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25 minutes ago, canopy said:

Let's compare. A cesspit

But I am not talking cesspit.  Rings are used for tanks with cement top and bottom and they are connected together below water level and full bacteria action takes place just as in a plastic tank.  They have been used here in Bangkok in such configuration since at least 1974 when my home was built.  But yes most will not have a drain field but go into gray water drains which may or may not get further water treatment.  Here in Bangkok most land plots are often too small for drain fields and clay does not drain well in any case.  

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2 hours ago, lopburi3 said:

But connection to second tank will be below the drain level so first tank will keep floating material above entry and second tank should be mostly water.

 

image.png

V3.11 should ease the worry.

 

v311.jpg.6393e64654a160876e66305063682e55.jpg

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