HEATKEYS

Pipe Flow Software for engineers that perform flow rate calculations, pipe pressure drop calculations & pipe network analysis modeling

An informational website focused on helping growers learn about water management in Washington, Idaho and Oregon.

Free Irrigation Tutorials. How to design, install, and repair sprinkler & drip systems. Sprinklers, pumps, filters, winterization, & more.

Air Conditioning, Heating & Refrigeration NEWS site has up to date weekly information that covers all aspects of the ACHR and HVAC industry.

Pressure Drop Homepage: Calculation of pressure drops in pipes

The home page of the United States Protection Agency, www.epa.gov.

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

A library of over 500,000 free and free-to-try software programs for Windows, Unix/Linux, Mac, Mobile Phones, Games and Drivers and an up-to-date news and reviews section focused on IT subjects

Manufacturer Direct- Advanced, professional grade reverse osmosis drinking water systems and water softeners- Premium quality, Made in USA.

Calculations for pressure pipes, open channels, ground water, hydrology. Software, formulas, equations

specially engineered, pocketEngineer software is developed for engineers to enhance their professional competency and image at the spot. It is designed for both pocket PC and PC at anytime, anywhere.

Hvac design and equipment information, with free or low cost software for Hvac design calculations.