Various examples are provided for smart water systems. In one example, a method for providing water through a faucet includes detecting a voice request from a user; providing an indication of the voice request to control circuitry of an electrically operated valve coupled to a water supply line of the faucet; and activating the electrically operated valve to provide water through the faucet. In another example, a method includes detecting a request for water from a user; providing an indication of the request to control circuitry of an electrically operated valve coupled to a water supply line of the faucet; and activating the electrically operated valve to provide a specified amount of water through the faucet.

A fluid filter assembly that is defined by a head portion, a base portion, and a filter tube housing that is captured therebetween. Each head portion includes more than one fluid inlet and more than one fluid outlet that are oriented relative to the respective head portion such that a plurality of fluid filter assemblies can be fluidly connected to one another to provide a desired degree of filtration of the fluid passed therethrough and such that the fluid filter assemblies can be oriented in a plurality of orientations relative to one another to provide a desired configuration of the fluid filter assembly.

A control system and a control method for automated controlling of a crossflow filtration system, as well as a corresponding crossflow filtration system, are provided. The control system comprises a measurement value processing unit configured to receive a plurality of sensor signals from a plurality of sensors of the crossflow filtration system; and to determine a plurality of process parameters defining an operation state of the crossflow filtration system based on the plurality of sensor signals.

Embodiments of the present invention are a filtering element, a filtering equipment and a water circulation cleaning system. In an embodiment, a filtering element includes a filtering screen and filter particles adhered to one side of the filtering screen, sizes of the filter particles being gradually increased in a direction from the one side to the other side of the filtering screen. Meanwhile, there also provides a filtering equipment including the abovementioned filtering element and a water circulation cleaning system including the abovementioned filtering equipment.

A fluid filter assembly that is defined by a head portion, a base portion, and a filter tube housing that is captured therebetween. Each head portion includes more than one fluid inlet and more than one fluid outlet that are oriented relative to the respective head portion such that a plurality of fluid filter assemblies can be fluidly connected to one another to provide a desired degree of filtration of the fluid passed therethrough and such that the fluid filter assemblies can be oriented in a plurality of orientations relative to one another to provide a desired configuration of the fluid filter assembly.

Various examples are provided for smart water filter systems. In one example, a smart water filter system includes a solenoid valve (or other electrically operated valve) in a water supply line of a faucet, and a filter bank coupled to the water supply line. Activation of the valve can stop the flow of unfiltered water through the faucet while allowing the flow of filtered water through the faucet. In another example, a smart water filter system includes a three-port solenoid (or electrically operated) valve coupled to a faucet, and a filter bank coupled to the water supply line and to a second inlet port of the three-port solenoid valve. Activation of the three-port valve can stop the flow of unfiltered water through the faucet while allowing the flow of filtered water through the faucet.

Flow sensors are provided that can provide both leak detection and flow monitoring. The flow monitoring enables a determination whether there are blockages or leaks in a fluid system during normal operation of the system. The leak detection enables detection of leaks when the system is shut off. The flow sensors can use a frusto-conical flow guide to provide a more compact flow sensor. The flow sensor components can be designed to retrofit existing filter assemblies.

A pool cleaning device (1) for cleaning debris from the floor of a pool without the use of suction and/or a pool pump and an interchangeable netting system that allows a user to change the net (10) on the pool cleaning device or on a pool skimmer from a mesh size used for capturing small debris to a mesh size used for capturing large debris as necessary.

Various examples are provided for smart water filter systems. In one example, a smart water filter system includes a solenoid valve (or other electrically operated valve) in a water supply line of a faucet, and a filter bank coupled to the water supply line. Activation of the valve can stop the flow of unfiltered water through the faucet while allowing the flow of filtered water through the faucet. In another example, a smart water filter system includes a three-port solenoid (or electrically operated) valve coupled to a faucet, and a filter bank coupled to the water supply line and to a second inlet port of the three-port solenoid valve. Activation of the three-port valve can stop the flow of unfiltered water through the faucet while allowing the flow of filtered water through the faucet.

Methods of filtering a liquid feed are disclosed. In one version, the method comprises passing a liquid feed through a single pass tangential flow filtration (SPTFF) system and recovering the retentate and permeate from the system in separate containers without recirculation through the SPTFF system. In another version, the method of filtering a liquid feed, comprises passing a liquid feed through a tangential flow filtration (TFF) system, recovering permeate and a portion of the retentate from the system in separate containers without recirculation through the TFF system, and recirculating the remainder of the retentate through the TFF system at least once. The methods can be performed using an SPTFF or a TFF system that comprises manifold segments to serialize the flow path of the feed and retentate without requiring diverter plates.