I bought some brand new Continental 5/8" water hose for the barn. The rats ate through the hose in a few weeks time. They did not have a hankering for the vinyl hose we had been using the past 15 year. They also ate through the plastic wheelbarrow. I suppose I will need to replace our 30 year old wheelbarrows sometime in the next few years.
All the wiring in the barn is in EMT conduit except the feed from the house which is in grey plastic conduit. While my mind does not do bends well with add 5 inches, subtract 5 inches, I still like running conduit. I have added circuits to existing 1/2 EMT. 3/4 inch EMT would have been handy in some places.
If you run water pipes under the slab, run insulation around it. Nothing more annoying than water pipe that is earth bonded so it take time to warm up the earth before you get hot water. Also that insulation maybe a little fudge factor that allows the pipe to expand and contract without tearing up.
all my outbuildings are emt...and my house was wires in MC cable and steel flex. im a semi retiring commercial electrician. i personally hate romex. worse invention ever. if you were to see the number of repairs ive had to make over the years to find rat and mouse chewed wires in walls you'd hate it also.
personally im surprised they dont burn down. what is it about mice and other rodents. heck, one ate thru my plastic diesel tank on my tractor.
in my house ive actually have modified some circuits over the 22 years that ive lived here...and love the fact that i could simply snake another wire thru the conduit and not have to open the wall.
all my wires running to outbuildings are in conduit. years after i built the barn, the wife wanted to be able to turn on the lights from the house to be able to check on horses at night, or to light the way to the barn (usually to turn off the lights when she noticed them left on when getting ready for bed). i simply snaked a 3 way circuit thru the 300' of conduit (i ran 2 empty conduits along with the circuit) and now i can control the barn lighting from house.
i also decided on running a WiFi circuit extension out to shop and barn. each building is approx 300 feet from each other. the empty conduits came in handy. i didnt have to redig anything. i now have wifi throughout major section of property.
i run my business off of a iPad that is WiFi controlled. its nice not to have to hotspot my phone to conduct business.
remember, the most expensive part, both in time and equipment cost, is the underground trenching and compaction/landscape part. run extra conduits. think about future changes