Wednesday, February 22, 2012

Why Use a Septic tank?


Septic tanks and septic systems are used when sewage treatment plants are not accessible. They safely treat and dispose of wastewaters produced in the bathroom, kitchen, and laundry. These wastewaters may contain disease and germs of 5 deadly diseases such as tetanus (lockjaw), diphtheria, pertussis (whooping cough), hepatitis B, and polio. The pollutants must be treated to protect health of the citizens and the environment. Septic systems are usually a permanent solution to wastewater treatment and disposal sometime there are displace by sewer pipes.
What Is a Septic System?
There are different types of septic tank, each with its own design. The conventional septic tanks are the most common and are used in North America. These are consisting of three main parts: the septic tank, the drain field, and the soil beneath the drain field.
Tank is a watertight concrete box which is about 9 feet long and 5 feet tall. It is buried in the ground just outside the home. The tank is usually precut from unbreakable concrete which can be obtained from concrete manufacturers. The septic tank temporarily holds household wastages and allows a small amount of preprocessing to take place.  
The drainfield is also called the soil absorption field or nitrification field. The only purpose of the drainfield is to transport wastewater to the soil. By removing the chemicals and germs; the soil purifies the wastewater before they reach the groundwater or any near way surface waters such as rivers, lakes e.t.c.
What happens inside the tank?
Wastewaters from the household flows into the septic tank which include waters from the bathtub, shower and washing machine can contain germs or environmental pollutants. As wastewater flows into the tank, the solid materials settle down to the bottom and the lighter greases and fats float to the top which forms a scum layer, allows the liquid i.e. the sewage effluent to flows out of the tank. The tank's primary purpose is to keep hold of the solids while releasing sewage effluent to the drainfield.

What Process take place in the Soil and the Drainfield?

Real treatment of the drainage water occurs in the soil beneath the drainfield. Sewage effluent flows out of the tank as a fluffy liquid that still contains many disease-causing germs and environmental pollutants. Seepage flows into the perforated pipe in the ditch, as it passes through the holes in the pipe, and then passes down through the gravel in to the soil. Many of the bacteria that can cause diseases escapes as effluent enters and passes through the soil are filtered out. Viruses are also adsorbed by the soil until they are destroyed. The soil can also keep certain chemicals, including phosphorus and some forms of nitrogen.

Removal of the drain pipe blockage


We can use a number of methods to unblock drainage to allow the water to soakaway:
By removing stopper: removing the stopper is one way whether the blocked drainpipe is in a sink or bath. In case of your bathtub, the plug can be unscrewed at the mouth of the drainage or the overspill plate can be removed to expose the assembly.
Removing stopper: why is it important?
It is important because only then you can view what are blocking the drain inside the pipe. Lot of particles such as hair, nails and other particles will be seen covered with wretched material inside the drains piping. Reach down into the pipe and pull the mess out as much as possible. If the mass is located in a area, where it is difficult for you to grasp it and pull it out, then use a wire to dig into the area and pull the dirty stuff out.
2nd Method
If the above method doesn't work, use other method of clearing the occlusion. Blockage material which is very mystifying enough can be removed with the help of a drain plunger. First, cover the overflow drain with a wet cloth in order to make the air suck from the plunger stronger. Next, place the piston directly over the drain pipe opening and methodically pulse the piston up and down number of times. Hopefully, after doing this and once the piston is taken away, any water. If all the methods fail then, get the service of sewage removal contractor or drainage service in.