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Ezy-Drain

Introduction


Soil Porosity

To establish the overall length of a drain run required, a soil porosity test may be necessary. The following procedure should be adopted:

  • Excavate a hole 300mm square by 300mm deep below the proposed invert level of the land drain.
  • Fill hole with water to a depth of 300mm and allow to drain away overnight.
  • Refill to a depth of 300mm and observe the time taken to drain from 75% full to 25% full level (i.e a depth of 150mm). Divide this time by 150mm. The answer gives the average time in seconds (Vp) required for the water to drop 1mm.

Repeat this exercise two more times with at least two trial holes. Calculate the average time.

By reference to the table below, the length of drain run required for various capacity tanks may be established.

Drainage field disposal should only be used on test values (Vp) between 12 and 100. Where a Vp value falls outside these limits, our technical team can advise.

Trench excavated to site specific requirements arisings kept for re-use.

Excavate trench   Lightweight sections

3m Ezy-Drain sections are lightweight and easily handled.

         

Ezy-Drain sections are simply joined together using click-fit connectors.

Easily joined   Roll sections into trench

Assembled Ezy-Drain system is then rolled into the dug trench.

         

Arisings used to backfill to top of trench.

Backfill trench      

Packaged Drainage Field

While great advances have been made in wastewater technology, land drainage remains reliant on traditional techniques.

Now Titan can offer the Ezy-Drain system, a revolutionary new product that redefines the method of dispersing water into soil.

Utilising recycled synthetics packed around sectional tubes, the Ezy-Drain design offers a packaged solution to avoid the drawbacks of using loose quarried aggregates. The resultant benefits are an extremely lightweight system that can be rapidly installed without the need for specialist skills.

Applications

Treatment Plants and Septic Tanks: Ezy-Drain replaces the perforated pipework of a 'herring-bone' drainage field. Ezy-Drain's storage and flow charecteristics typically achieve 35% more surface area than natural aggregates, resulting in enhanced water treatment capabilities and a reduction in long term clogging.

Effluent Drainage: Ezy-Drain may replace traditional 'carrier' drainage from a treatment plant to discharge point.

Seasonal Soakaways: Ezy-Drain is ideal to install as a 'seasonal soakaway' flowing from a treatment plant. A seasonal soakaway allows infiltration of treated effluent where ground conditions permit or transfers effluent to an alternative discharge point when ground conditions are unfavourable.

Soil Porosity Test Data

Time taken to fall 150mm (mins)

Equivalent value of Vp in sec/mm

Overall length of drain run required (m)

2800 litres (4 persons)

3800 litres (10 persons)

4600 litres (14 persons)

6000 litres (22 persons)

7500 litres (30 persons)

9000 litres (38 persons)

20 8 18 44 62 98 133 169
30 12 27 67 93 147 200 253
40 16 36 89 124 196 267 338
60 24 53 133 187 293 400 507
120 48 107 267 373 587 800 1013
180 72 160 400 560 880 1200 1520

The table indicates typical meterage for domestic septic tank applications, assuming a trench width of 450mm. Approximately 20% less drainage is required for Sewage Treatment Plants as treated effluent is of a higher standard. For other applications and further information, please consult Titan.

 

   
 
 
     
   

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