In our house, we have to complete all equipments. Some almost forgotten needs are rain water and gutter. A rainwater tank (we called it rain barrels in North America or a water butt in the UK) is a water tank, which is used to collect and store rain water runoff, typically from rooftops via rain gutters. Rainwater tanks are devices for collecting and maintaining harvested rain.

Especially in this year, I think the rainy season is not stable. Some days we get rain, and some days we have fried by sun. If we complete our house by Rainwater tanks, it is better for us to keep our house clean. Because it can reduce rain water use for economic or environmental reasons, and aid self-sufficiency. Stored water may be used for watering gardens, agriculture, flushing toilets, in washing machines, washing cars, and also for drinking, especially when other water supplies are unavailable, expensive, or of poor quality, and that adequate care is taken that the water is not contaminated or the water is adequately filtered.

Rainwater tanks may have a high (perceived) initial cost. However, many homes use small scale rain barrels to harvest minute quantities of water for landscaping/gardening applications rather than as a potable water surrogate. These small rain barrels, often recycled from food storage and transport barrels or, in some cases, whiskey and wine aging barrels, are often inexpensive. There are also many low cost designs that use locally available materials and village level technologies for applications in Developing Countries where there are limited alternatives for potable drinking water. While most are properly engineered to screen out mosquitoes, the lack of proper filtering or closed loop systems may create breeding grounds for larvae. With tanks used for drinking water, the user runs a health risk if maintenance is not carried out.

So keep your house!