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The health aspects of your water tank...
In both tank and stream water there is a vast array of micro-organisms, most of them are harmless to humans, however there are some common ones that can cause minor stomach upsets and diarrhoea. These usually only last a day or two, although the more serious can last months and require medical intervention but fortunately these are less common.
The organisms present fall into 3 distinct biological categories and these are:
The conditions on the bottom of most tanks provides a good environment for these bugs and they multiply, feeding on the small quantity of nutrients available at the bottom of the tank. These nutrients are primarily provided by the breakdown of organic matter, a process that itself depletes oxygen, resulting in a low oxygen zone near the bottom that , in general favours the bad bugs. Interestingly, in spite of their tiny size these bacteria as well as the following 2 groups are subject to gravity and settle to the bottom of the tank. This happens in streams to a certain extent but the current in a stream helps to distribute the micro-organisms. In a water tank there is little current except when it nears empty and new water falls in from the top. So in a stream the safest water to drink is from the top of a deep pool with as little current as possible. The same is true of your tank.
Bacteria, as with the following organisms, are mostly spread in the faeces of birds and animals. In order to reproduce they need to find a host and water is a good method of dispersal for them. When the infected water is drunk by a person or animal diarrhea occurs and the cycle is repeated.
It is quite difficult to test for these creatures as only one or two may be present in large quantities of water, however one is enough to start an infection. Luckily most tanks have few or no cysts present though it appears the chances are much higher if rodents or possums can access the roof or if the tank is filled from a stream.
Impurities (i.e. dirt, leaves, paint flakes, insects):
A WaterBoy unit will drastically reduce these problems immediately and permanently.
That said it is also a 'lucky dip'. If your resistance is low it will be more likely and if you drink a lot of water the chances are increased also. Gastrointestinal illness may come from your water or from your food.
Water testing can give you some indication of the state of your water but only at the time it was taken. The quality of the water can change rapidly with temperature, rainfall frequency and the seasonal behaviour of birds and animals.
We truly believe that the WaterBoy is the single most effective thing you can do to improve your water, both long and short term.
Other simple steps such as removing overhanging branches from your roof, removing access to your roof for animals and keeping your gutters clean will ensure you can drink as much and as freely as you like of the delicious, quality water, so essential to human health and without the doubts of its purity.
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