What I wish I knew when I got my (new) House #Water #Plumbing

This article is primarily about water purification. I knew nothing about it, and I have gone through the process of finding and installing a good water filtration system from a reliable company which is trusted. I did not want to pay a “water company” the typical $3–4k for an RO system, which could be a scam. I wanted regular plumbers to be able to install an RO filter from a brand