Rain Water Collector Idea model

Just an idea for collecting rain water and filtering it for clean usage. The roof guides the water to the gutter and stored directly to the barrels. The water then passes through a layered filter then goes down to the lower tank to be stored as clean rain water. 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).