#1 ◱ The neighbors had a 26 year old horse die that was born next door. That was sad. I think it might be the one on the right. It is also the mother to some of the other ones.
#2 ◱ Don stands atop the septic tank. 3000 gallons. Two man-holes. To the left you can see the man-hole for the pump system on the 1000 gallon dosing tank.
#41 ◱ Y for connecting the garage / green house to the sewer. Also the white water pipe (schedule 40, 450 PSI, probably one-inch inside diameter) and the gray Internet pipe. Also the gray electrical conduit.