How to Make a Powerful Water Pump using Hard disk and bottle

DIY : Learn how to make a water pump using hard disk, bottle, PVC pipe and metal strips. Its very simple homemade centrifugal pump show how it works. Let's check it out website for all major details - Visit New channel- Mr. NK: Glue used in this video : It's Physics working models for science exhibition. Thank you for watching Crazy NK !!!!!!