Question

what are the disadvantages of rainwater harvesting ?

Answer 1

Disadvantages of Rainwater Harvesting

1. Unpredictable Rainfall: Rainfall is hard to predict and sometimes little or no rainfall can limit the supply of rainwater. A proper designed system will ensure that you get the best out of it, it also should have a "mains water" top up to ensure that you don't run out of water.

2. Initial  Cost: Depending on the system’s size and technology level. Like solar panels, the cost can be recovered in the years to come, which again depends on the amount of rainfall and sophistication of the system.

3. Regular Maintenance: Rainwater harvesting systems require regular maintenance, this also depends on the sophistication of the system. Self cleaning rainwater filters ( PURAIN) help to minimize maintenance and keep the water clean.

4. Certain Roof Types may Seep Chemicals :Certain types of roofs may seep chemicals. Check with some specialists ( [email protected]) for your existing building and address it with your architect if you want to build.

5. Storage Limits: The collection and storage facilities may also impose some kind of restrictions as to how much rainwater you can use.



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Answer 2

dear friend,
1) all place do not receive the same amount of rainfall.
2) it is also difficult to predict rainfall.
3) it is hard to predict and sometimes little or no rainfall can limit the supply of rain water.
4) it is not advisable on rain water alone for all your water needs in area where there is limited rainfall.
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