Use 3 plastic bottles to make an Automatic Water Pumping system - Without Electricity

This is how I created a circulating water system using 3 used plastic bottles to help plants grow well Science project working model without electricity How to make automatic water pump for plants how to make water pump for plants with bottle Water science project ideas Mini water pump science project Have I answered all of your questions about how to make water pump? People who searched for Without Electricity also looked for Free Energy.