11630 SW 97 Street, Miami, Florida 33176, US
Bubble Action Pumps Ltd. (BAP) in Kingston, Ontario makes a circulating pump known as the bubble pump invented by retired architect Wilfred Sorensen which circulates the fluid in solar water heating (SWH) systems in which heat that is gathered in collectors on a roof is delivered to a water storage tank below. The pump is powered and controlled by sunshine, requires no electricity and is self-controlling.
A video of one of our smaller pumps in action can be seen at WIKI Solar Water Heating Article 4.2. In a chart titled “A rough comparison of solar water heating systems” our system scores higher than all the others. A video of a larger pump in action can be seen on our website www.bubbleactionpumps.com