Devices, systems, and methods may be used for wirelessly communicating underwater (or through air) with equipment such as, but not necessarily limited to, automatic swimming pool cleaners (APCs). Such communication avoids any need for conventional wired communication with the APCs. At least some of the devices may be hand-held and capable of having at least portions immersed in water in normal use. The devices preferably do not use radio frequency (RF) signal to communication with APCs, instead employing light-based or other signal types.

A pool or spa device is provided in the form of a housing, a first component, an ultrasonic device, and a controller. The housing defines an interior of the pool or spa device. The first component is positioned within the interior of the housing. The ultrasonic device is provided in the form of an ultrasonic generator and a first ultrasonic transducer. The ultrasonic generator is designed to generate at least one signal in an ultrasonic frequency range. The first ultrasonic transducer is in communication with the ultrasonic generator. In some instances, the first ultrasonic transducer is designed to produce ultrasonic vibrations in response to the at least one signal. The controller is in communication with the ultrasonic device. In some instances, the ultrasonic vibrations removes scale accumulation from the first component of the pool or spa device.

A system and method for controlling an alkalinity level of a pool or spa is provided. The method includes the steps of providing a vessel designed to retain an alkalinity agent, measuring an alkalinity value of water of the pool or spa at a first time period, and determining whether the alkalinity value of the water is outside an alkalinity threshold range. The method also includes the steps of determining a first amount of the alkalinity agent to provide to the water of the pool or spa and providing the first amount of the alkalinity agent to the water of the pool or spa. The vessel retaining the alkalinity agent is in fluid communication with the pool or spa.

A system and a method are provided for mitigating contamination in a swimming pool or spa. An example method receiving a first input at a user interface to activate a contamination mode for the swimming pool or spa. The method may further include outputting an indication of one or more contamination mitigation options at the user interface in association with receiving the first input to activate the contamination mode. The method may further include receiving a second input at the user interface to select a contamination mitigation option from the one or more contamination mitigation options. The method may further include performing one or more contamination mitigation actions associated with the selected contamination mitigation option.

A floating and energy-autonomous device (1) configured to dispense a solid compound (2) into a volume (3v) of liquid is provided. The device (1) has a reservoir (9) of solid compound (2), and a pump (13) configured to generate a circulating flow of the liquid (3) coming from the volume (3v) of liquid and passing through the reservoir (9) before returning to the volume (3v) of liquid. The device (1) includes a sensor (17) generates a sensor signal indicative of a parameter of the volume (3v) of liquid or of a gaseous environment (4) of the device (1), and/or an antenna (18) configured to receive a radio signal, and to generate an antenna signal. The device (1) includes a microcontroller (19) configured to command the pump (13) and to regulate the circulating flow rate of the liquid (3) on the basis of the sensor signal and/or of the antenna signal.

Techniques and methods for wirelessly communicating underwater with equipment such as, but not necessarily limited to, automatic swimming pool cleaners (APCs) are detailed. Such communication avoids any need for conventional wired communication with the APCs. In some cases sounds may be used to communicate, and such sounds may travel through both air and water.

A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a filtrate line, a feed line, a recirculation line, a gas line, and at least one pump. A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, operating the system in an aeration mode, operating the system in a pre-filtration mode after operating the system in the cleaning mode, operating the system in a drain mode, and operating the system in the filtration mode following the drain mode. A controller and non-transitory computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by the controller, instruct the controller to perform a method of operating a water filtration system are disclosed.

Disclosed is a disinfection lamp with an underwater light projection effect, comprising an upper lampshade, a lower lampshade, a lens lampshade and a tube for containing sustained release chlorine tablets, wherein a circuit board and a battery are arranged on the lens lampshade, a solar panel is mounted on the surface of the upper lampshade, a first light bead is arranged on the lower surface of the circuit board, a light diffuser is arranged at a position, corresponding to the first light bead, of a bottom of the lens lampshade, the first light bead is located in the light diffuser, and the lower lampshade is mounted at the bottom of the lens lampshade. The disinfection lamp can float on water, and the tube containing the sustained release chlorine tablets is immersed in water, such that a conventional water purification, sterilization and disinfection effect is realized.

A dispenser system for delivering various combinations of dispersants to a body of water with the various combinations of dispersants supplied to the body of water through the interchanging of dispensing cartridges which are attachable to a main dispensing cartridge where a condition for interchanging of dispensing cartridges may be triggered by an event and the dispersants are isolated from a floatation member in the dispenser system.

Systems and methods related to communication with and control of network-enabled water devices and sensors of various water systems are disclosed. Such water systems may include water filtration systems, water reclamation systems, sump pump systems, pool or spa systems, water softening systems, and plumbing systems. Such water devices may include chemical controllers, smart valves, pool pumps, sump pumps, water softeners, residential appliances, and manifolds. Such sensor devices may include flow meters, splash detectors, motion sensors, moisture sensors, humidity sensors, chemical sensors, water level sensors, pressure sensors, and cameras. Data received from network-enabled water devices and sensors may be processed at a remote server or a local controller, which may cause corresponding alerts or maintenance requests to be sent to one or more user devices or service providers or may automatically control one or more of the water devices and sensors based on analysis of the data.