A low profile drain for installation in a surface of a swimming pool or spa formed of a surface material and having a drain inlet. The low profile drain comprises a sump having an annular chamber forming a top side defining an annular top opening. There is an outer sidewall and an inner sidewall on opposite sides of the annular top opening. The outer sidewall has an upper peripheral edge about the annular top opening. The sump has a water stop extending radially therefrom and adjacent to the upper peripheral edge. The sump has an outlet port formed laterally through one sidewall thereof for communication between the annular chamber and the drain inlet. The sump is configured to maintain open communication between the annular top opening and the outlet port, the annular top opening extending without substantial interruption about a center axis of the sump.

A system used to monitor and control a pool using a visual light communication system is disclosed.

A sump drain for installation in a surface of a swimming pool or spa, the sump drain comprising an annular chamber having a contiguous annular top opening formed by an inner side wall, an outer side wall and a bottom surface, a plurality of outlet ports, an inner and an outer water stop, a plurality of diverter plates configured to removeably couple to the inner and outer side walls of the annular chamber, each diverter plate comprising two opposed straight ends, a bottom surface having a plurality of louvers, and a pair of side walls extending from opposed sides of the bottom surface, wherein one diverter plate is placed over each outlet port, and a grid cover configured to removeably couple to the annular top opening of the chamber, the grid cover having a multiplicity of openings.

A method for treating water in a spa or a hot tub includes, for example, suspending a water treatment dispenser from an upper end of a filter cartridge disposed in a skimmer of the spa or the hot tub. The dispenser includes a water treatment material. A supply of water is passed from the spa or the hot tub into the skimmer and through the filter cartridge so that the dispenser suspended in the filtered water in the filter cartridge is operable to dispense the water treatment material from the dispenser, and a supply of treated filtered water from the filter cartridge is returned to the spa or the hot tub. A cover, for example, may be employed when the dispenser is not used.

In an embodiment of the present invention, a swimming pool water exchange device is provided. In an embodiment, the device fills fresh water, from a water source, into one or more bags as the old water is pumped from the bottom of the pool. In an embodiment, the water exchange device is further provided with a regulation system. In the embodiment, the regulation system cuts off the fresh water supply if the water level exceeds a predetermined height. Furthermore, the regulation system may shut off the pump if the water level drops below a predetermined height.

A method for treating water in a spa or hot tub includes, for example, supporting one or more water treatment dispensers from a supporting structure in an upper end of a filter cartridge disposed in a skimmer of the spa or the hot tub. A first dispenser includes a first water treatment material and the second dispenser includes a second different water treatment material. A supply of water is passed from the spa or hot tub into the skimmer and through the filter cartridge so that the first dispenser is disposed in the filtered water in the filter cartridge to dispense the first and/or the second water treatment materials from the first and/or dispensers, and a supply of treated filtered water from the filter cartridge to the spa or hot tub. One or more caps, for example, may be employed when the first and/or the second dispenser is not used.

A swimming pool drain and sump assembly with a toroidal drain housing that includes a lower section with a drain outlet port extending through the lower section wall and a continuous annular channel that loops back upon itself, and an upper section supported upon the sump base only along the inner wall, cantilevered over the sump base from a lower edge of the sump cover to an upper edge of the sump cover. The lower section and the upper section form an annular, continuous, uninterrupted, single orifice drain entrance channel between a top edge of the outer wall and the upper edge of the top piece. Some embodiments include a continuous, one-piece blockage tray insert adjustably positioned within the drain entrance channel and an access port cover within an access port that is a continuous opening with the drain entrance channel.

The pool safety device includes a front wall and a rear wall connected together by a cylindrical shaped main section and a tapered section to form an outer shell with an interior. The front wall has a center hole sized to receive a standard flexible pool vacuum hose and a front door sized to cover the same when the hose is not connected to the device. A rear mounting pipe is connected to the rear wall at a rear opening such that the rear mounting pipe is in fluid communication with the interior of the pool safety device. The front door, front wall and tapered section are fitted with a plurality of holes which act as inlets to the interior of the pool safety device. Similarly, the cylindrical shaped main section has a plurality of main section slots which act as inlets to the interior of the pool safety device.

A pool drain or sump basin having elongated ring-shaped body, at least one and preferably a plurality of outlet ports about the ring-shaped body for allowing water to exit the drain, external peripheral flanges for mounting the drain, and an opening for allowing water to enter the drain, the ring-shaped body having an inner sidewall and outer sidewall, and open topside, and a closed bottom or floor closing off the bottom side of the body, bridging the gap between the inner sidewall and the outer sidewall, and creating a drainage channel. The body may have an optional cover configured as a removable or replacement cover with openings. The pool drain may have optional bridging elements and flow regulating elements for greater structural support and water flow regulation through the pool drain.

A pool drain for flush mounting in the surface of a swimming pool includes a central hub and elongated drain ports in fluid communication with the central hub. The elongated drain ports extend radially away from the central hub. The surface material individually surrounds the central hub and elongated drain ports when the pool drain is installed in the surface material. Internal dividers are located between the central hub and the elongated drain ports. The internal dividers are positioned so that they direct fluid away from the central hub, around each of the internal dividers and back toward the central hub. A water stop surrounding the central hub and elongated drain ports anchors the pool drain in the surface and prevents leakage.