Discover how to build a hand-powered water pump that also generates electricity to light up LEDs using everyday recycled ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Your pool pump may be the biggest electricity user in the backyard. Here’s why modern variable-speed pumps can cut energy use ...