Rain Water Collector Idea model 2

Another idea for collecting rain water and filtering it for clean usage. The roof guides the rain water to the gutter and stored directly to the open concrete tank. Extra water goes to the overflow and out of the tank so its best to dig canals to guide the overflowing water to farms or dry ground needing extra hydration. The collected and stored rain water can be directly used from the valve below, although it is not filtered. Donations would be a big help for me to keep making more 3D models and to survive https://www.paypal.com/donate?hosted_button_id=H49EUE876D842 - I hope this 3D model can be of help to inspire create useful structures for communities having difficulties with water (be it gathering, storing, or filtering).