Good morning M.Rudd.
Well it seems I posted without knowing at the proper place....goood! This is the very same place I had found to post that I am using presently.
Okay, here I go. I am a 78 years old French Canadian with varied interests in, repairing, modifying, building, and rebuilding tools and everything else including cultivating my garden. You could say "an old man using with amusement is talents".
As an example, quite by luck, while googling for a method of localising underground plastic pipe, came upon an article by AWEMAWSON on how he built himself a "water thumper" I could make good use of for repurposing my irrigation system.
Not being able to send an email directly to him, I picked up the MadModder.com name and registered. This morning, with your answers I will try to obtain further informations
Thank you M.Rudd.