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US 2026/0250171 A1Published application
Self-mediated saltless whole home water treatment systems and methods
AssigneePentair Residential Filtration, LLC
InventorsBlake Brewer, Charles Bulger, John Jerome Haigh, Eric Wehrli
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Abstract
The present disclosure provides a water treatment system including a processor subsystem and a tank subsystem. The tank stores prefiltered water from a carbon filter in a bottom portion of the tank and mineralized water from a post-filtration subsystem in a top portion of the tank. The tank is configured to supply an outlet with the mineralized water before the second prefiltered water.
Claims20
A water treatment system, comprising:
- a sediment filter for filtering untreated water in fluid communication with a source of the untreated water, wherein the untreated water enters the sediment filter and produces a first prefiltered water that exits the sediment filter;
- a carbon filter for filtering the first prefiltered water and in fluid communication with the sediment filter, wherein the first prefiltered water enters the carbon filter and produces a second prefiltered water that exits the carbon filter;
- an antiscalant feeder for adding an antiscalant to the second prefiltered water and in fluid communication with the carbon filter, wherein the second prefiltered water enters the antiscalant feeder and produces a third prefiltered water that exits the antiscalant feeder;
- a pump in fluid communication with the antiscalant feeder;
- a first membrane element for removing solutes from the third prefiltered water and in fluid communication with the pump, wherein the first membrane element produces a first permeate comprising the third prefiltered water imparted with a first concentration of solutes and a retentate comprising the third prefiltered water imparted with a second concentration of solutes, wherein the first concentration of solutes is less than the second concentration of solutes, the first membrane element in fluid communication with the pump;
- a second membrane element for removing solutes from the retentate and in fluid communication with the first membrane element via a retentate line, wherein the second membrane element produces a second permeate;
- a post-filtration subsystem comprising one or more mineralization cartridges in fluid communication with the first membrane element and the second membrane element via a permeate line, the post-filtration subsystem configured to add one or more minerals to the first permeate and the second permeate and produce mineralized water exiting the post-filtration subsystem;
- and
- a tank in fluid communication with the post-filtration subsystem and the carbon filter, wherein the tank stores second prefiltered water from the carbon filter in a bottom portion of the tank and the mineralized water from the post-filtration subsystem in a top portion of the tank, the tank configured to supply an outlet with the mineralized water before the second prefiltered water.
6 more elements
A water treatment system, comprising:
- a sediment filter for filtering untreated water in fluid communication with a source of the untreated water, wherein the untreated water enters the sediment filter and produces a first prefiltered water that exits the sediment filter;
- a carbon filter for filtering the first prefiltered water and in fluid communication with the sediment filter, wherein the first prefiltered water enters the carbon filter and produces a second prefiltered water that exits the carbon filter;
- an antiscalant feeder for adding an antiscalant to the second prefiltered water and in fluid communication with the carbon filter, wherein the second prefiltered water enters the antiscalant feeder and produces a third prefiltered water that exits the antiscalant feeder;
- a pump in fluid communication with the antiscalant feeder;
- one or more membrane elements for removing solutes from the third prefiltered water and generating a permeate stream, the one or more membrane elements in fluid communication with the pump;
- a post-filtration subsystem comprising one or more mineralization cartridges in fluid communication with the one or more membrane elements via a permeate line, the post-filtration subsystem configured to add one or more minerals to the permeate stream and produce mineralized water exiting the post-filtration subsystem;
- and
- a tank in fluid communication with the post-filtration subsystem and the carbon filter, wherein the tank stores second prefiltered water from the carbon filter in a bottom portion of the tank and the mineralized water from the post-filtration subsystem in a top portion of the tank, the tank configured to supply an outlet with the mineralized water before the second prefiltered water.
5 more elements
A water treatment system, comprising:
- a sediment filter for filtering untreated water in fluid communication with a source of the untreated water, wherein the untreated water enters the sediment filter and produces a first prefiltered water that exits the sediment filter;
- a carbon filter for filtering the first prefiltered water and in fluid communication with the sediment filter, wherein the first prefiltered water enters the carbon filter and produces a second prefiltered water that exits the carbon filter;
- a pump in fluid communication with the carbon filter;
- one or more membrane elements for removing solutes from the second prefiltered water and generating a permeate water, the one or more membrane elements in fluid communication with the pump;
- and
- a tank in fluid communication with the post-filtration subsystem and the carbon filter, wherein the tank stores second prefiltered water from the carbon filter in a bottom portion of the tank and permeate water in a top portion of the tank, the tank configured to supply an outlet with the permeate water before the second prefiltered water.
3 more elements
Dependencies are inferred from the claim text.