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" Waterbelt drain belt collects and drains groundwater from rainfall, high water table and seepage without clogging. It separates the soil particles from the water before collection so drain rock and geotextile filters are not required "


Drainage doesn't work like you think......

DEWATERBELT.COM : Drainage Test

Drainage......We make a trench,install perforated pipe surrounded by drain rock. the water will go into the pipe and flow away......right?

DEWATERBELT.COM : Drainage Test

Watch what happens......

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An actual sized section of a perforated pipe assembly is constructed. The plexi - glass container has holes in the bottom so water can drain, and a door to close the bottom of the container so water may build up within the container. It is evident a considerable amount of sand has fallen into the spaces created by the drain rock even before the first use.

An abundant supply of water is indicated by the buildup on top of the sand. The water percolates through the sand, then the drain rock layer, and flows through the holes in the bottom of the container. THE WATER DOES NOT ENTER THE PIPE AS IT FLOWS THROUGH THE ASSEMBLY.

The bottom of the container is then closed and sealed; forcing water to build up inside the container. When the water rises to a level higher than the bottom of the pipe(as indicated by the red line above), water enters the pipe through the perforations and starts to flow. WATER WILL NOT ENTER THE PIPE UNTIL THE DRAIN ROCK LAYER IS COMPLETELY FILLED AND THE WATER LEVEL RISES HIGHER THAN THE BOTTOM OF THE PIPE.


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Field tests confirmed the water does not enter the pipe, but flows through the drain rock layer. It only enters the pipe if there is a blockage in the drain rock layer or excessive amounts of water, forcing the water to build up higher than the bottom of the pipe (pressure to push the water into the pipe comes from the buildup of water).

Common belief is that by placing a pipe with holes underground and surrounding it with drain rock, the water will automatically go into the pipe. As water is migrating through the soil on its journey to the water table, gravity defines the behavior. When it reaches the bottom of the drain rock layer and encounters a less permeable barrier, the water will build up and begin flowing through the spaces in the drain rock. It will not enter the pipe until there is a buildup of water to create the required pressure.


Excess water on the surface causes flow......but this is not ground water. it's surface water.

DEWATERBELT.COM : Drainage Test

Flowing water is normally dirty; the result of soil particles carried by the flow. When the flow is reduced or stopped, the soil particles settle along the bottom. We have all seen the huge cleanup required after a flood deposits a thick layer of silt over the entire area.

A trench filled with drain rock creates the conditions for flow and supports surface water behavior. Flowing water dislodges and carries soil particles with the flow. As the flow is decreased or stopped, the particles settle according to their weight, creating a buildup in the drain rock layer and in the pipe.

Attempting to drain ground water with surface water methods are against the laws of nature and clogging will occur.


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PIPE DRAINAGE HAS BEEN A DIFFICULT PROBLEM FOR A LONG TIME BECAUSE IT OPERATES ON THE PRINCIPLE OF FLOW


Groundwater movement according to the laws of nature...
Groundwater is water that occupies the pore space between the soil particles and cracks in rock formations below the surface. The source of groundwater is rainfall which percolates through the soil as it migrates to the water table. The water table will rise and fall with the seasons according to the amount of rainfall.

Below the surface, water moves by CAPILLARY. Capillary is a process where water moves in the pore space between the soil particles, first coating them, then, filling the space between them. Water moving through the soil by capillary is a law of nature.
 
DEWATERBELT.COM : Drainage Test When soil is dry, the spaces between the particles are filled with air. As the soil becomes saturated, water replaces the air as the water moves through the soil by capillary. The speed of water movement through the soil is dictated by the size of the particles. Soil, with a larger particle size, also has larger spaces between the particles, so the rate of water movement is greater (right side). Conversely soil, where the particle size is small, will display a much slower percolation rate (left side).

THERE IS NO DISPLACEMENT OF SOIL PARTICLES AS THE WATER MOVES THROUGH THE SOIL BY CAPILLARY; THEREFORE, NO EROSION AND NO CLOGGING
 
DEWATERBELT.COM : Drainage Test

A paper towel placed in wet soil demonstrates capillary action. The water can move in all directions, including vertically, without transporting soil particles

DEWATERBELT.COM : Drainage Test

WATER COLLECTED BY CAPILLARY PRODUCES FULL FLOWS OF CLEAN WATER


In the technological age, why do we keep using drainage solutions which are prone to failure?
 
DEWATERBELT.COM : Drainage Test

A pipe with holes is installed in an earth dam to control the seepage through the dam, allowing the seepage water to flow into the pipe through the holes in the walls of the pipe. The water exiting the pipe is dirty due to the large amount of silt carried by the flowing water. The removal of the soil particles from around the pipe creates voids and increases the area in which erosion can occur. As the spaces are enlarged, the erosion rate increases. Installing a filter around the pipe will only result in the filter clogging quickly.

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The displacement of the soil particles results in erosion as the water carves out channels to flow. The attempt to control seepage with perforated pipe drainage has created a more serious problem resulting in a deterioration of the structure.

 

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A method was devised to contain and collect the water with Waterbelt. The water was collected in layers represented by the discharge pipes. Initially the discharge was dirty from the construction process.


 
DEWATERBELT.COM : Drainage Test After 30 minutes, the water in the first level had cleared with the settling of the soil particles, and with the second discharge point close to being fully settled. Seepage can now be controlled effectively, and without clogging of the drainage system.
 
DEWATERBELT.COM : Drainage Test

The process can be demonstrated by shaking a water bottle containing water and soil. The sample on the left shows the soil particles in a state similar to flood waters. The sample on the right shows the same bottle after a settling period, and consistent with conditions in the soil without the influence of man. The particles settle according to their weight.

DEWATERBELT.COM : Drainage Test
 
DEWATERBELT.COM : Drainage Test

Once the water has settled, it will stay settled permanently.

The water can now be recycled back into the reservoir.

DEWATERBELT.COM : Drainage Test
DE WATER COMPANY LIMITED

47/1 Moo 12 Tambol Bangsaothong Amphur Bangsaothong, Samut Prakarn 10540 Thailand
Email: info@dewaterbelt.com Phone: 66 (0) 2769 5440  Fax: 66 (0) 2769 5652
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