Drain Cleaning using water jetting is a highly efficient way of removing coatings and stubborn deposits from tanks, vessels and pipe work. http://www.youtube.com/watch?v=Jo_XxO1v7Cw
Drain Cleaning with Water Recycling
‘Using water from fire hydrants of drinking water quality to clean drains makes no sense. Drinking water is much too valuable for cleaning sewers. With commercial water charges already in place drain cleaning with water recycling is the only sustainable solution to maintaining your storm and sewer pipe networks’
Sparing use of natural resources
With the water recycling system up to 240,000 litres of fresh water per day are saved, given a flushing rate of 400 litres per minute and a flushing period of 10 hours. A typical local authority commercial water charge is €1 per m3 of water. If the above truck was operated without water recycling it would use up to €240 worth of water over a 10 hour working day. 240 m3 of water is the equivalent of approximately 8 No. 30 m3 arctic tankers of water.
• No driving times to a source of water i.e. fire hydrant
• No waiting times for the tank to fill with water
• Saving of potable water requirements of up to 100 % daily
• Up to 100 % more work capacity every day through continuous operation
• Operation at freezing temperatures through working with sewer water
Water Recycling Process
A high-pressure water hose with a sewer flushing nozzle is fed into the soiled sewer. The high-pressure water jet dislodges the dirt and flushes it to back to the manhole. At the same time, the water jet pushes the hose further into the sewer.
The water and debris flushed into the manhole is extracted by means of a high volume liquid ring vacuum pump. Solids and water are thus conveyed by the suction hose into the sludge tank.
3. Water recycling
Water and solids are separated in the sludge tank using a primary screen and then a self-cleaning filter. The filtered water is then passes through a cyclone system where it is reused for pipe cleaning purposes via the high pressure water pump. The water passes through the cyclones at a rate of 4:1. This means the water has effectively passed through the cyclones 4 times before it is reused for sewer cleaning using the high pressure jetting pump. This ensures that all debris and silt is removed from the water and deposited back into the sludge tank