Particles in suspension drop to the bottom as the liquid rises to the horizontal level of the new outlet. The new drain pipe will now only receive liquid (solids drop to bottom of tank) once the level has risen above the level of the lower extension bottom end. Make sure the mouth of the drain pipe has a 90 degree bend on it with a downward extension of about 50cm. Install drain pipe below level of inlet pipe into tank. I have a feeling the ground under the cesspits have just gotten soaked.Įncountered exactly the same problem (property not mine).Įarth at base of pit has become impermeable due to soil compacting and clogging with "matter" so will not drain. The water rises above the toilet outlet pipe and toilet doesn't flush properly. First 15 years it took over a year for 2 connecting 4 ring cesspit too fill up. What is the approximate cost to replace concrete cesspit with plastic septic tank system? When your drain field fills with gunk, the well water is polluted, and you're back to having the truck come out frequently to pump out your septic tank don't say you weren't warned.īut in Florida do you put ALL waste water into septic tank, so need bigger tanks, like in Australiaīut here in Thailand only the toilet waste goes to the tanks, the rest of the water goes to ground, so much smaller tanks needed ? Most people in Thailand are comfortable with the former, I'm not. Just depends if you want to do things based on what some guy you never met before says or if you want to do things that are proven to work well.
If you care whether the septic tank adequately treats the waste, it's probably a good idea to size your septic tank rather than guessing. If your greywater is divided that can play a role in sizing. You can order any size you want even way bigger than that. This is why most people end up with cesspits. And doing something because you see others doing it and getting a feeling this is "normal" is not a good building approach in a country where a lot of things are commonly done wrong. Just because we are in thailand is no excuse to make up our own rules with no factual basis arbitrarily to cut corners.įlorida does not freeze and mandates 3400 liters minimum. The building codes of Florida mandate a 3400 liter *minimum* septic tank size and some will need bigger than this.
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