Not sure what you are trying to accomplish, but I use a whole house water filter that uses string-wound cartridge filters, a water softener, and I have a reverse osmosis filter for drinking water.
I’ve got the same setup, but paid to have it done professionally.
Nor do I, yet. But I was thinking about drinking water and some kind of selfmade filters to avoid cost and dependency on certain manufacturers.
You could build a diatomaceous earth filter. https://water.mecc.edu/exam_prep/DiatomaceousEarth.htm
Regarding RO filters, generic versions are available on eBay for not much money. A 5 stage unit can be purchased for a bit over $100. Even if you put together your own PVC, you would need the sediment filter, carbon filter and RO membrane cartridge.
I have these behind the house filter and the softener in two houses. I change the cartridges every couple years.
Sounds interesting and I'll look into that, thanks
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