What is Water Harvesting?
Watering harvesting means capturing rain water, where it falls and capture the runoff from, catchment and streams etc.
Generally, water harvesting is direct rainwater collection.
This collected water could be stored for later use and recharged into the ground water again. Rain is primary water source lakes, ground water and rivers are the secondary water source.
How to Harvest Rain Water
Rainwater could be easily collected in plastic tanks. They are easy to install and handle. They are comparatively cheap from underground tanks, but definitely take up space. For harvesting rain water you first calculate the possible rain, you can do this by getting information from Meteorological Bureau of your area. They would give you information about the average rainfall during whole month.
How Much Experience You Need
You all can do this work easily, without any kind of experience. You would be needed only a qualified electrician to fix the electrics and a plumber for sewage purpose. Of course, for working at heights and making connections one needs good safety practices.
Be Careful about the following things:
1. Your water should not seep on the public roadway, or on the property of your neighbor.
2. Water gets wasted by evaporation, so proper arrangement should be done.
3. Regular maintenance is must.
4. Never let the gutters block, leaf-guard is best, but it is expensive.
5. In-line-leaf is good, but they need proper and regular cleaning.
6. Your tank must be mosquito free.
7. If you want to drink rain water, then, keep in mind that your roof should not be zinc-alum, because aluminum is dangerous for you.
8. You should be aware of birds and animal droppings.
9. It must be pollution free.
What about contamination?
Rainwater is surprisingly hardy stuff. It tends to contain very low levels of minerals and can be a bit acidic – making it hard for bacteria and other organisms to survive. That said, it is water and as such can be contaminated easily. So it is fair to be concerned about storing water.
Why you need to invest in rainwater harvesting today:
Models that monitor our available water resources and their rate of consumption point to a critical situation in South Africa where, at the current rate, demand for water will exceed its supply. This will not only endanger the survival of millions of people, it will drive up the cost of water and place additional stress on already critical natural water sources.