Sustainable drinking water purification method

[lavarat]

I lived in a heavily wooded area and I would put the pipe from the downspouts above the tank screen to keep the big stuff, like coqui frogs and leaves, from going into the tank. In another place I would put nylon anklets on the end of the pipe if the pipe was under the screen also to catch the coqui frogs and big debris. But you have to check the anklets frequntly because they fill up fast and can dump into the water if not replaced. This just keeps organic matter from accumulating inside the tank.