Filtration systems a crucial part of keeping supply clean
Units can remove all major hazards
Published 15/06/2010 | 05:00
WATER is an essential requirement for both man and beast. Once a well is drilled, getting it to the surface and furnishing a reliable and safe supply can require some sophisticated equipment. The traditional system was an above-ground pump mounted on a steel pressurised tank with a bladder inside it.
These were usually siphon-type pumping systems, of which there are many still out there -- you can still get them new.
Essentially, the electrically driven pump circulated water around a loop, down a small pipe and through a foot valve in the well and back up the larger pipe to the tank. There is more room for the water going back up the bigger pipe from the foot valve in the well and this creates a vacuum, drawing water out of the well and depositing it into the bladder in the pressurised water vessel.
The water pump fills this bladder until the preset pressure at the pressure switch is reached, thereby cutting out the pump motor. The air pressure in the steel tank then squeezes the bladder full of water to supply it around the farm or house.
As the bladder empties, the pressure drops inside the cylinder until the pressure switch again switches on the electrically driven pump to again refill the bladder. And so the pumping and supply process continues.
Today the submersible is perhaps the most common of all water pumps found across the country. They are as a rule extremely reliable and durable, capable of pumping large amounts of water over long periods of time. There is only one water pipe required down the well (plus power cable), so they are easier to install.
The pump is only one part of the water supply system; above ground is the pressure vessel and perhaps water treatment or filtration systems.
To get an idea of what water systems, in terms of filtration and treatment, are available and what they might cost, I called into Pat Conroy in Camolin, Co Wexford, who has many years' experience supplying and installing pumping and filtration systems.