Whitefly control

Here's a little video on how to make cheap flypaper traps.  White flies are a big nuisance in greenhouses!

Sequencing / Indexing Valve

This is a sequencing / indexing valve that I designed a couple of years ago.  This uses a pinching mechanism to stop the flow of water.  It is able to pass solids and keep operating if there is a clog elsewhere in the plumbing.  I decided that it would be too expensive to develop and would show everyone how it works.