Local tap is dubious at best and leaded at worst so we fill 5gallon jugs at a filter station the next town over. I’m getting tired of transporting and paying for water, so I’d like to make a filter that won’t just clog up with hard water in a week. Anyone have recommendations on where to start?


Get your water tested. You can throw all sorts of filters and treatments at it, but unless you know what’s in your water, you won’t know what’s important.
Your local government might have people that can test your water. You really want someone who will actually come over and collect the water themselves, it’s really easy to do it wrong and end up contaminating the collected water.
There are companies that can design a good treatment setup for you. Or you can do some research and get your own.