Retired mechanic Jose Alano invented a simple, cheap, energy saving rooftop solar water heater which is benefiting thousands of people. Here's how it's done... José Alano is a model of creativity in ...

PVC pipe is one of the most common and popular options for providing communities and homes with clean, safe drinking water.

Polyvinyl chloride (PVC) is hailed as a wonder material, and, in many ways, it is. However, the possibilities are not endless. PVC has its limits, especially in HVAC applications. PVC sometimes makes ...