I'm going to set up water percolation tank( made of cement rings ) for filtered septic water from septic tank.
Is it necessary to have air vent pipe? but it could cause some foul smell.
Would it be a problem if percolation tank is nearby building wall?
Should I bury the percolation tank like one foot below with plastic cap just to take the water out so the cement ring cap doesn't come into human contact as well as there won't be any space for the gas to escape?
Is it true that if Percolation tank is just 5 feet or less water percolation would be high as air pressure will increase the percolation ?
Someone please share the knowledge. Thanks.
Update:
My septic tank size is 12 feet(Length) by 7 feet(Width) by 5 feet(Height) but the tank is getting filled up in two months and septic tanker lorry service is expensive too.
I have seen people pump septic water once in 8 or 10 years only. The septic tank just drains through the ground.
But for me that's not the case and other than that I don't have much space left to construct a wide drain field. All I have is 3.5 feet ( Width) by 60 feet(Length) empty space.
So when I looked up the internet I got to know people use something called evaporation tank or percolation tank which drains the filtered water from septic tank into the ground.
The ground water in the town that I live in is a salt water. The salt content is so high that people don't use it to even wash the kitchen vessels.
Water for the town comes from a source which is 100 kms away.
Besides
I also read about new phenomenonphenomenon called Bio Septic Tank.
Which is nothing but a regular septic tank but a inoculum bacteria is regularly dropped into septic tank via toilet once in a month , it just eats away the scum,sludge and septic water becomes better and this water goes through drain pipe into percolation pit.
So in the place of collection tank , my septic tank is there and filtered water can be sent to evaporation tank link in the above picture.
Evaporation tank is nothing but our percolation tank made by cement ring well.
I noticed none of the evaporation tank has a air vent so thought whether no air vent could increase the percolation rate ?
My goal is to drain the septic water in the healthy , sustainable way.