Abstract: The present invention is directed to a method for adjusting the pH of the water in a hot tub or a spa without clouding to within the range of 7.0 to 8.0, without adversely removing calcium, and without adversely increasing the total alkalinity of the water. The method of the present invention comprises the steps of:a) adding to the water in the hot tub or spa from one to five pounds of buffer per 500 gallons of water, the buffer comprising from about 90% to 99.5% by weight boric acid and from about 10% to about 0.5% by weight sodium carbonate; andb) allowing the buffer to dissolve in the water;whereby the water is buffered without clouding to a pH within the range of 7.0 to 8.0, the dissolved calcium is not substantially removed, and the total alkalinity of the water is not adversely increased.In a preferred embodiment of the method, the pH of the spa or hot tub water is adjusted and/or maintained within the range of 7.2 to 7.8.
Abstract: The float is employed for controlling the valve of a water tank of a toilet for regulating the water level. The float has a solid core with wall structure extending therefrom forming a sealed chamber located on one side of the core. An aperture extends through the core. The volume of the chamber is greater than the volume of the core and the chamber and most of the volume of the float is located on one side of the aperture. The aperture will receive the free end of a rod which is connected to the valve. The float may be rotated around the rod and secured thereto at different angular positions to select the desired water level at which the valve is closed.
Abstract: An attachment for closing all varieties of flush valves before the normal amount of water has exited the tank includes a buoyant float that falls with the water level of the tank during a flush and applies its weight against the flush valve to push the valve prematurely into its seat. A float guide rod attaches to the tank wall and provides a path for the float to move upon, and a valve actuator rod is adjustably connected to the float and directly contacts the flush valve. A variety of attachments to the flush valves or actuator rod are provided for reliable performance. A combination of an entire flush valve assembly with a valve closer incorporated in its structure includes a float guide rod attached to the standpipe of the valve assembly rather than to the tank wall.
Abstract: A dual flush system tank adapted to provide either a full flush or a partial flush at the option of the user. The control handle is actuated normally to produce a full flush. If a partial flush is desired, the control handle is held in its depressed condition for two or three seconds after which it is released. This produces a partial flush. A partial flush is produced by a buoyant reseating weight which will float down with the falling level of liquid in the tank to depress the flush ball and prematurely reseat it in its outlet seat when only part of the liquid has been discharged from the tank. The reseating weight is provided with a latch actuated by the flush handle. For a full flush, the latch is released but is immediately re-engaged before the reseating weight moves downwardly in the tank and is hence latched against premature seating of the flush bal.
Abstract: A water saving float attachment for use with a water closet or toilet tank having float operated control valve means for regulating the liquid level in the tank, a hollow ball float, and rod means operatively conecting the float with the control valve means; said float attachment being adapted to be applied to the external surface of the hollow ball float, and having a density less than that of the liquid in the tank. Said attachment, when applied to the hollow float, has an effective diameter substantially greater than that of the uncovered float, whereby, when the attachment is applied to the float, the liquid in the tank will be maintained substantially lower level than the liquid level when the hollow float alone is employed.
Abstract: A two-stage toilet flush mechanism is provided in which operation of the usual control lever to a yieldable manually-felt detent point produces a partial flush the duration of which is controlled by the position of first float with respect to the initial water level in the storage tank, and movement of the lever beyond the detent point produces a complete flush the duration of which is controlled by the position of a second float with respect to the initial water level.
Abstract: An improved dual discharge valve unit is provided for easy installation in an existing water closet flush tank. The unit provides flap valves disposed at two different levels in the tank for controlling the discharge of water therefrom. The structural arrangement is such that depending on the direction in which the actuating handle on the tank is pivoted either a full flush or a partial flush may be had as desired.
September 23, 1977
Date of Patent:
October 31, 1978
Lyle F. Addicks, Bennie Gift, William R. DiCicco, Jr.
Abstract: This invention provides a flush regulator for use in a toilet flush tank in order to regulate the outflow from the flush tank through an outlet pipe. The regulator includes a mounting portion from which extends water chamber means open upwardly, and air chamber means open downwardly. The chamber means are symmetrically arranged with respect to the mounting portion.
Abstract: A water closet tank flush valve designed to provide a full or partial emptying of the associated water tank, as desired, when the flush valve is operated. A valve stem which is raised to unseat the flush valve is fitted externally along its length with a pair of spaced external recesses. A pair of floats are mounted on individual rotatable levers, one-above-the-other on a slotted tube surrounding the valve stem, so that the upper of the stem recesses is engaged by a detent on the lever of the upper float to retain it in the partly raised position until the water level falls to a first position, after which the first float drops to release the valve stem to seat the tank valve. When the valve stem is raised to the full height, the detent of the lower float lever similarly engages the lower recess of the valve stem as long as the water level supports the lower float.
Abstract: The disclosed device provides a normal minimum flush cycle for water closets with the ability to override the short cycle to cause a larger water volume flush cycle. The conventional tank flapper dump valve is modified so as to retain no buoyancy during the flush cycle and a positively buoyant member is adjustably fixed on the valve operating chain an appropriate distance from the valve. When the operating handle is actuated, the added buoyancy holds the valve open while the water level in the tank falls until the added buoyancy member surfaces at which time the valve closes and the tank refills normally. Short cycle override is accomplished by merely holding the handle in the actuated position allowing a greater portion of the water in the reservoir to pass.