Sounds like a pitch, but it's more of where to get the goods at a reasonable price than a deep, vertical supply chain intent on creating an inkjet economy. If

Sounds like a pitch, but it's more of where to get the goods at a reasonable price than a deep, vertical supply chain intent on creating an inkjet economy. If you (US-based) want some residential/commercial RO membranes or water softeners for a reasonable price, I've had these at all the homes and apartments of family and self for 20 years. Retail channel: https://wateranywhere.com https://wateranywhere.com Commercial channel: https://www.appliedmembranes.com https://www.appliedmembranes.com My mom's house in Texas had the following freighted together: - Whole house filtration (3x 20" big blue + 2 bypass valves) - Water softener of sufficient grain reduction capacity - uses rock salt for cation exchange sodium for calcium in the presence of the catalyst bed. Creates water that's nicer to bathe and wash with, but it's probably not potable and can't be used to water plants. - RO - 100 GPD - 3x 10" filters + RO membrane + UV + 1 post filter + permeate pump (reduces waste and transfers pressure from waste to feed). It's a PITA to run the tubing to refrigerator, sink, and wherever else you want it, but it's a one time thing. I used oversized tubing 3/8 ID to increase flow rate and reduce loss over a long run. Initial cost is about $4k. Ongoing cost is about $40-50/year for whole house filtration and $60-80/year for RO depending on water quality. The RO and whole house filter setup should be sanitized every 6 months using appropriate supplies and methods. Great care and research has to be taken choosing effective whole-house filter and RO filter cartridges to trap potential contaminants. At a minimum, the water should be sampled and tested by a lab and the local health department. There are specialized filters for heavy metals, chloramines, nitrates, and such. Here are some: https://wateranywhere.com/filters-and-housings/kx-extruded-carbon-filters/ https://wateranywhere.com/filters-and-housings/kx-extruded-c... Mom's RO setup produces water <2 ppm at a resistance of 1 MΩ/cm. It won't be as good elsewhere without sufficient pressure and if the water has higher ppm of dissolved solids. Bottom line: Never drink US tap water. Flint, MI isn't an aberration. (My mom's extended family lost several members due to cancer from polluted water at a house they shared around Durango, Colorado in the 4 corners area.)