l Managing the Watering System l
operate at low pressure, providing little turbulence to dislodge this
build-up. With biofilm present, the water becomes contaminated with
pathogens. Biofilm also can clog drinkers, causing them to provide
Producers commonly introduce chlorine or other sanitising agents into the system
to kill bacteria. This practice 5 top tips on water supply
aids in achieving hygienic wa- 1 Adjust drinkers to correct height.
ter but it does not kill bacte- 2 Fix leaks.
ria embedded in biofilm. Nor 3 Look out for air locks.
does it break up the biofilm. 4 Install a filter to prevent sediment build-up.
The bacterial load in the wa- 5 Prevent biofim by flushing:
ter quickly returns to the pre- ● immediately after any intervention of medication,
sanitised level. ● one minute for every 30 metres of pipe length,
A good strategy to combat ● at least once a week,
biofilm, as well as air locks and ● more than once a day during warm weather,
sediment, is to develop a regular ● use high pressure ( 1. 5-3.0 bars).
schedule for flushing the watering system. Enclosed watering
systems make a regular flushing
schedule easy with the by-pass valves on flush-through water regulators. We recommend flushing once a day, and more frequently during
Warm weather encourages micro-organisms to colonise the system
and reproduce quickly. High-pressure flushing not only prevents biofilm from forming but also flushes out tepid water, replacing it with
cooler water that is less hospitable to
Employing a high-pressure flush
using 1. 5-3.0 bars (20-40 pounds/in2;
psi) pressure is recommended. That is
usually sufficient pressure to break up
the biofilm. Hydrogen peroxide-based
cleaners also have proved to be highly
effective in eliminating biofilm. An
oxidising agent in hydrogen peroxide
scrubs the interior of the pipe clean of
biofilm, making the system ready for
After flushing, the biofilm, sediment
and air locks are removed and the risk
of clogged, leaky drinkers is greatly diminished.
By paying close attention to the
watering system, producers can better manage manure pits and
maintain dry conditions. This can go a long way to improving the
performance of a commercial layer operation. EI
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P.O. Box 39 • Register, GA 30452