Thanks all for the comments. I feel a lot better about having someone come to the house. I agree with talking to them first. My son has sold several...
That is a remarkable wealth of knowledge! It is almost word for word what my go-to Machinist and engine mechanic hero told me when I had him put new...
I'm also with Roger and Thomas on this...never publish the information in the clear in public, but at some point...and you have to use your intuition...
Look at "drip line irrigation" There are lots of complete systems available for most any size need. It's also a great to apply fertilizer throughout...