Water along side air is one thing that we simply cannot do without. Our bodies are made up of seventy percent of it, everything we need to survive with the exception of air contains at least 70% water. It is probably our most precious comodity. Water in the form of snow and ice at the north and south poles control the climate of the planet. It is brought to us in the form of water vapor in the sky which we call clouds. Rain from the clouds is fresh, cean and unsalted. It helps plants to grow and gives all forms of animal life fresh drinking water. It is so vital to our existance and yet we take it for granted and abuse it.
Water is the most useful substance we have and it provides an easy option for solving all sorts of problems. Putting out fires is a good example. In the kitchen I have often seen examples of water usage that puts people at great risk despite the fact that it provides a sloution to a problem. Allow me to explain. We receive our clean drinking water through a network of pipes. The pressure at which the water arrives at our homes and places of work should be around 4atm.
Somtimes water pressure can drop and we get a backflow of water through the pipes in the opposite direction. Should the end of a water pipe have been placed inside a volume of dirty water what would happen is that the dirty water would be drawn into the network of clean water pipes which would then be contaminated. If it seems to you that I am splitting hairs, I can assure you that such occurances do happen very frequently.
So what could happen in a home or commercial kitchen senario that would cause dirty or sewer water to be drawn into the fresh water network? Below you will find a list of possibilities that can easily cause dirty wated to flow back into a fresh water supply network.
- By using a water hose to unblock drain pipes. Drains block up all the time and an easy way of unblocking a drain pipe is to push a fresh water hose pipe down the drain and to make a clearing in the blockage by means of the jet of water coming out of the hose pipe.
- By using a hose pipe to prevent potato peel from clogging the drain at the back end of a potato peeling machine.
- By leaving a hose pipe in a cooking pot while it is filling with water.
- By leaving a hose pipe unattended when filling water onto potatoes and other peeled vegetables.
- By leaving a hose in a pot filled with thawing chickens or any other form of meat
- Another dangerous practice is putting a hose pipe in any substance other than water. This may be insecticides, caustic soda, acids, disinfectants, soaps, paints, solvents, building materials and countless other substances.
In all of these instances serious and potentially lethal situations can and do frequently occur. A reduction or loss of water pressure may cause dirty water to enter an otherwise clean water system. In extreme cases where sewer water enters fresh water pipes epidemics such as Polio, Meningitis and other potentially fatal diseases can quickly spread amongst populations. The golden rule is this; do not leave water pipes in contact with anything. The end of your water outlets must only come into contact with AIR. Protect your water source and it will protect you.