Need home buying tips, any agents here, or anyone with buying experience? Long

Have a "draw down" test performed on the well. Also have local health lab perform water quality test. Test for hardness and bacteria.
Is there a homeowner water treatment system? UV?
If they are on well there should be no chlorine? A quick test to tell if they are "hiding" something is to add a packet of "free chlorine" reagent to water sample. If it changes color then chlorine is present in the water and shouldnt be.
I can mail you a couple packets if you like? Just pm me your address.
A couple things we've found out about this home. It was custom built by the current owners in 1997. So not terribly old, and its only only had one owner. The couple is now elderly and are only selling to move closer to their children. Being the house is actually a few miles outside of town, its on city electric, but water is a well, and sewer is a tank or a septic field, not sure yet but will find out.