19 September 2014
 
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FAQ

Frequently Asked Questions

  1. What does LDPE stand for?
  2. What does MDPE stand for?
  3. What does HDPE stand for?
  4. What does PVC stand for?
  5. What does GRP stand for?
  6. What is the difference between single wall and twin wall?
  7. What is a sewage treatment plant?
  8. What is a septic tank?
  9. What is a cesspool?
  10. What is off mains drainage?
  11. What is soil porosity?
  12. What is a bunded tank?
  13. What is a fuel station?





What does LDPE stand for?

Low density polyethylene

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What does MDPE stand for?

Medium density polyethylene

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What does HDPE stand for?

High density polyethylene

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What does PVC stand for?

Polyvinyl chloride

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What does GRP stand for?

Glass Reinforced Plastic

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What is the difference between single wall and twin wall?

Single wall construction is land drainage pipe made from one corrugated layer of polypropylene, twin wall construction is pipe made from 2 layers of polypropylene, the external one being corrugated and the internal one being smooth. Twin wall pipe offers superior strength and flow characteristics.

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What is a sewage treatment plant?

A self contained plant that holds back raw sewage and aerobically breaks down the effluent and solids by the introduction of oxygen, to an environmentally acceptable liquid.

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What is a septic tank?

A relatively small holding tank that allows sewage solids to settle and hold back whilst the partially treated liquor runs off to a soak away. This anaerobic process has a byproduct of methane.

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What is a cesspool?

Simply a very large holding tank with an inlet only and no outlet. It stores all the foul and grey water discharge for periodic collection by a tanker.

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What is off mains drainage?

A solution for a property not connected to a public sewer system and not paying rates for their foul water discharge.

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What is soil porosity?

The part of a soil volume that is not occupied by soil particles or organic matter. Pore spaces are filled with air, other gases, or water. Large pores allow the ready movement of air and the drainage of water. Large pore spaces permit fast infiltration and percolation of water through a soil or soil horizon.

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What is a bunded tank?

A tank within a tank. The outer tank contains any leaks or spills that could come from the inner tank containing the hazardous liquid.

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What is a fuel station?

A completely self contained fuel dispensing tank. It consists of a bunded tank, a lockable fill and empty point, a pump, a hose, a flow meter and an automatic dispensing nozzle.

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