the press and turn knob 1 has a cover plate 2 which upon being removed allows access to the stop washer 3 and machine screw 4 which keep the press and turn knob 1 vertically engaged with the sleeve 5 while matching grooves 6 in sleeve 5 and knob 1 allow free vertical movement of the knob but provide secure engagement for mutual rotation . ( fig7 ) activation of the press and turn knob 1 counterclockwise will move the post keeper 8 down against the compression spring 10 causing the release of extension post 7 ; thus allowing engaged sleeve 5 and brass valve stem 17 ( having corresponding square cross - sections ) to rotate together and force open ball valve 18 thus initiating water flow from water inlet 12 into the said diversion valve . vertical keeper guides 9 allow only vertical movement of the post keeper 8 . once disengaged from the retaining slot in the keeper post 8 , extension post 7 rotates with sleeve 5 and rests atop the varying height outer rails of post keeper 8 which maintains contact due to the vertical pressure from the compression spring 10 . lead water , which has cooled within the piping , flows into the water inlet 12 through inlet connecting tube 13 into the split flow tube ring 15 ( which surrounds thermostatic coil assembly 14 ) ( fig8 ), then flows on through the valve connecting tube 16 into the open ball valve 18 , then on through the outlet connecting tube 20 ( fig9 ) and out water outlet 21 into piping directed into the user &# 39 ; s selected storage . ball valve 18 is held rigidly in - place by means of the valve alignment seat 19 maintaining axial alignment . water in the split flow tube ring 15 arriving from the water heater will continue to flow and the increasing temperature of the water will transfer its heat through the coil container cup 14 b causing the dissimilar metal thermostatic actuating coil 14 a to begin expansion and consequent rotation from increased thermal pressure ; thus simultaneously causing clockwise rotation of the engaged brass valve stem 17 / sleeve 5 . the thermal actuating coil 14 a is contained in a coil container cup 14 b , and capped by a cover plate 14 c to help retain the heat . the temperature adjustment lever 14 d is attached to the coil container cup 14 b in order to vary resistance to the coil for correlation of flow with desired water temperature . the rotation also causes extension post 7 , connected to sleeve 5 , to work back against the post keeper 8 and compression spring 10 until it is seated in a restraining slot in the outer rail of post keeper 8 where it sat at the initiation of the procedure while , at the same time also bringing the press and turn knob 1 back to its initial position , ready for the next activation . simultaneously , the rotary motion caused by rising temperature brings about the closing of ball valve 18 thus stopping water flow and having hot water now in place at the point of use . the escutcheon plate assemblies 11 , which vary in design , form the connection between the knob , sleeve and valve . the escutcheon plate 11 for the wall mounted unit ( fig4 and fig5 ) is singly self contained . however , in the case of the countertop mounting unit ( fig2 and fig6 ) the escutcheon is comprised of 4 separate parts necessary to facilitate clamping of the unit into the bored countertop hole comprised of the outer escutcheon plate 11 a , inner escutcheon plate 11 b and 3 each machine screws 11 c . shim 11 d is to adjust for a thinner countertop if required . the entire diversion valve , save the actuation knob , is contained in an enclosure consisting of the upper enclosure body 22 half and lower enclosure body 23 half . along the upper and lower enclosure bodies 22 and 23 meeting edges , at the inlet side , there is a slot with a serrated bottom edge to form adjustment lever notches 24 to provide for affixing the manual temperature adjustment lever 14 d at varied positions . at the base of the lower enclosure body 23 there is set a valve alignment seat 19 which keeps the ball valve 18 rigid and aligned for smooth rotation and operation . in the present design of the enclosure bodies 22 and 23 , the front and back faces are flattened and thus are interchangeable to allow for mounting against the wall with the water inlet 12 coming from either side depending on the direction of the water source . lastly , wall angle rails 25 are molded with the enclosure body 23 half and designed to receive a stainless steel wall angle 26 flange . one flange of the wall angle 26 is secured to the wall with stainless steel angle mounting screws 27 necessary for the wall mounted device . securing the rail to the flange is done with metal set - screws . storage of diverted water can be accomplished with a varied amount of choices on the part of the householder installing this present invention . to illustrate the relationship between the installed thermal activated cold water diversion valve and the optional water storage reservoir designed specifically to embody a complete installation , there is shown ( fig1 ) a typical existing lavatory 28 on a countertop which shows the existing lavatory faucet hot water tap 29 to which a 3 - way tee insert 30 is installed . a water inlet line 31 from the tee attaches to the diversion valve inlet 12 . water flows through the diversion valve to outlet 21 where it is directed through the line from outlet line 32 to reservoir inlet 33 into a water reservoir 34 ( a molded 5 to 7 gallon capacity container capped with a rigid formed combination shelf / lid ) which is wall attached by the wall mount 35 over the existing toilet tank 43 . another reservoir inlet 36 is provided opposite reservoir inlet 33 to provide for an alternate left side feed from the existing lavatory . reservoir outlets 37 and 38 also are provided on both sides for connection to the outlet line from reservoir 41 based on the existing flush line inlet being to the left or right side . ( the not - connected outlet is fitted with a spigot for drawing water from the reservoir at will . note that the water is still potable as it has not left the system .) water is then directed toward a one - way valve 46 which is inserted between the existing water tap 44 and the existing water tank inlet 45 . overflow outlets 39 and 40 are provided to the left and right on the underside of the tank for connection to the overflow line 42 to the toilet bowl . the unused outlet is capped . the overflow outlet is designed to set to the rear of the toilet and empty into bowl should the reservoir become full . the existing water supply ( fig1 ), being disconnected from the toilet tank , a one - way valve 46 is inserted using a new tap connector 48 at the existing water tap 44 and new line connector 49 is re - connected to the existing water tank inlet 45 . the one - way valve 46 insert is fitted with a pressure activated stopper 47 which disallows flow against the outlet line b 41 from the reservoir 34 . the device , upon activation , diverts the cooled water in the hot water lines for capture in a remote storage vessel . the unit is a self contained diversion valve opened manually and closed automatically by the transfer of heat ; it has no electrical connections or batteries . the practical and attractively designed valve comes assembled , fits in the palm of one &# 39 ; s hand and is easily installed on a bathroom wall or through the lavatory countertop . a wall bracket is provided for wall installation while installation on the counter requires boring through the counter top . both installations secure the subject valve in the bathroom within convenient reach of the lavatory . connection is made under the bathroom lavatory by removing the hot water faucet connector hose from the tap , inserting a 3 - way tee , reconnecting the hose to the tee and connecting a new hose from the tee to the new diversion valve at the inlet side . another hose is connected from the valve outlet to the water storage vessel . done ! cost of the valve and installation is very affordable and installation requires minimal plumbing knowledge or experience and can be accomplished by other than trained plumbing technicians . storage alternatives for the recovered water from the diversion valve are quite varied . the user may provide a localized container such as a bucket which can be toted away for use in other areas or could provide for directing the flow to an exterior container , such as a rain barrel or cistern . another concept is to divert the water to a storage tank located over the existing hot water heater and connect it to the incoming water line through a check valve . the present invention includes the embodiment of a wall mounted reservoir set over a nearby toilet in the same bathroom for storage of the recovered water . the water from the diversion valve is dispensed into the reservoir for storage and used when toilet flushing is activated . the location of the reservoir over the toilet tank provides gravity flow through the flow line which is of a greater diameter than the water tap line into the tank ; a one - way tee is connected and is such that the flow from the reservoir forces the plunger open ; together , these features partially override the normal tap pressure hence allowing the stored water to flow into the toilet tank . the diversion valve , once installed , is normally “ off ” with the knob secured , the valve closed and the inlet side charged with water which has cooled over time as has the entire hot water line from the water heater . the also - cooled thermostatic coil , affixed to the valve stem , is in the contracted state and has the predisposition to open the valve , but is restrained from turning by an internal keeper until such time as the system is activated . to activate , one presses knob 1 down and turns it counterclockwise ; and it in turn presses the post keeper 8 down against the compression spring 10 releasing extension post 7 , thus allowing post 7 , sleeve 5 and stem 17 to rotate and simultaneously open ball valve 18 . ( note that the required rotation is only one quarter turn .) water flows from the inlet 12 through the split flow tube ring 15 and on through the ball valve 18 and out the outlet 21 through the line to the selected storage . water will continue to flow and increasing temperature from the water in the split flow tube ring 15 will cause the thermostatic actuating coil 14 a to expand once it reaches the preset operating temperature range , resulting in increased rotary pressure of the coil causing rotation of the valve stem 17 ; the increased pressure also causes extension post 7 to rotate back clockwise until the post is seated in a preset restraining slot along the edge of post keeper 8 . as the temperature rises and , causes the stem rotation , it simultaneously closes ball valve 18 thus automatically stopping further water flow . the coil assembly is provided with a manual temperature adjustment 14 d to more closely and more accurately correlate flow rate and operational temperature range of the unit . following the operational cycle , the lead cooled water has been stored , the valve automatically turns itself off and hot water has reached the location of both the lavatory and shower and both are now ready for use . no water waste has occurred . the design and composition of dissimilar metals , the width and thickness , the characteristic interaction of the metals of the thermostatic coil which turns the valve stem will require certain water temperature set - points . these are a function of engineered design for the thermostatic coil and are foreseen as being somewhere between 60 and 100 degrees fahrenheit based on the choice of materials and configuration of the coil . diverted water via outlet line 32 from the diversion valve outlet 21 enters the reservoir inlet 33 * or 36 * and spills into the recovered water reservoir 34 which is secured to the wall above the existing toilet tank 43 on a metal bracket . overflow ports are built into the reservoir near the top and open out the bottom of the unit at overflow outlets 39 * or 40 *. overflow line 42 spills into the toilet bowl or may be directed to a smaller container , avoiding floor spills . reservoir outlets 37 * and 38 * are provided at the bottom of the reservoir to one of which outlet line 41 is connected and flows to one - way valve 46 connected to the existing water tap 44 using a new tap connection 48 which displaces the original connection to the existing water tank inlet 45 . a new line connection 49 at the outlet of the one - way valve 46 receives the existing water tank inlet 45 . combined , gravity from the reservoir , the larger diameter of the flow line and the configuration of the one - way valve will override the pressure from the tap . this allows the stored water to be used at a faster rate . pressure can be adjusted by partially closing the tap faucet . * the reservoir inlets and outlets are provided on both sides to allow for location of the lavatory on either side of the toilet . the unused outlets are capped . the proposed diversion valve is made using proven existing technology , material and methods . its components can be constructed by existing manufacturers with little change in their existing setups . assembly can take place at another location once the parts are manufactured and delivered . primarily , the ball valve 18 is of standard brass and / or bronze factory construction , with neoprene seals and if necessary treated internally for smooth operation . only the metal valve turning stem 17 would be a specialty , different from most factory standards , but can be easily machined from standard metals to accommodate the unit configuration . the sleeve 5 , the extension post 7 , post keeper 8 , escutcheon assemblies 11 and alignment seat 19 can be molded in fiberglass and / or of plastic injection molding . the exposed to view knob 1 and the device body 22 and 23 , escutcheon 11 plus associated other parts can be coated in a metallic , baked enamel or ceramic finish to match popular bathroom trim and can be made of either formed metal or injection molded plastic , either materials using familiar bathroom fixture manufacturing techniques . the body enclosures are primarily cylindrical , but in simple form are flattened on the front and back in order to allow for alternate wall mounting on either face depending on the direction from which the inlet is fed . for countertop mounting , the body is not exposed to view . for exposed to view installations , the body lends itself to variable aesthetic designs , finishes and colors to match local decor and other bathroom fixture designs . the thermostatic unit 14 can be the product of one or more manufacturers who make a variety of metal parts . the coil container cup 14 b and coil cover plate 14 c are of stamped brass or copper and the temperature adjustment lever 14 d is of brass or stainless steel . the dissimilar metal thermostatic actuating coil 14 a is the product of manufacturers of thermostatic products having a variety of configurations , strengths and sizes . operating characteristics of the coil can be closely engineered to correspond to the desired water temperature for the unit . the engineered design for dissimilar metal selection and their physical characteristics and interaction , along with the width , thickness , and the number of turns will result in certain accurate water temperature set - points in the area of 60 to 100 degrees . further manual adjustment to desired operational temperatures by the user is provided in the unit &# 39 ; s design . connecting tubes 13 , 16 and 20 along with split flow tube ring 15 are of extruded brass or copper piping joined by standard solder , welding or other proven methods and techniques to assure water tight connections . the connections for the tee inserts 30 and 46 are to be stainless steel or chrome plate threaded cap and nipple compatible with the existing connectors to which they are inserted . valve inlet 12 and valve outlet 21 are shown on the drawings as standard threaded cap and nipple of plated brass or stainless steel . however , as an alternate for easier consumer installation , these connections can be annular ringed slip - on pressure connections associated with plastic tubing . connecting tubing for water flow is compatible flexible plastic tubing , white or clear , with size and wall thickness suited to the water pressure and flow rate at the installation . it is anticipated that the diameters would be in the range of ¼ ″ to ⅜ ″. the valve unit configuration for most of the components is cylindrical . this is because the motion of the unit occurs about a single vertical axis . the knob , sleeve , post keeper , spring , escutcheon components , thermostatic assembly and base of the stem are primarily of cylindrical plan form . the upper portion of the valve stem along with the matching sleeve hollow , have a square cross section which provides for engagement for tight fit and simultaneous rotation . all elements shown are necessary . some parts , shown as separate , such as the valve alignment seat which could , for the ease of manufacture , be integrated with the body configuration for ease of manufacture or operation . likewise , with some study , some of the escutcheon assembly parts could be formed together , also in the interest of ease of manufacture . it is important that the split ring tube and the coil are separate so that the thermostatic coil remains dry and free of water calcium deposits which could interrupt its operation . the body design will include ventilation to avoid condensation build - up . regarding the final configuration of the unit , the locations of the valve and the thermostatic unit could be interchanged , but this would require penetrations above and below the ball valve , thus creating a point for potential leaks . also , the two parts could be inline , but a moving connection would have to be made between the two . a configuration having the water run through the unit interior , submersing of parts would not be desirable . keeping any water flow away from the thermostatic unit is very necessary . reconfiguring from a ball valve to another pressure seal valve would require introducing more turning motion in lieu of the minimal quarter turn in the ball valve . use of a “ bellow ” thermostat and piston can be made to work , but the coil thermostat better fits the axial configuration and operation of the unit . all technologies exist for making the reservoir and all its parts . the body will be molded of plastic used to make containers , probably through use of injection molding . tubing and plumbing connectors will be of standard materials and designs adapted to the needs . structural considerations are to be incorporated to assure durability and rigidity of the reservoir and mounts , and strength of the materials and connections . the one - way valve tee insert incorporates known check valve flow technology , using standard materials of brass , copper or bronze and will have finishes suitable to the installation and its surroundings . prior to using the shower or lavatory depress and turn the knob in a counterclockwise motion . wait but a few of minutes and the knob will automatically turn back clockwise and water flow will cease . during the flow , it may be advisable that one should be present should anything prevent the valve from fully closing or if your storage vessel begins to overflow . action required would simply be turning the valve clockwise to the off position . following normal operation of the unit , you may now turn on the faucet or shower because the desired temperature has been reached . one should adopt water saving habits while brushing , shaving or showering . the householder can furnish his own storage vessel or alternate methods of storage to include either the over - the - tank - storage featured herein for use in toilet flushing ; a counter top storage unit with spigot for domestic use ; or a system which would return the water to a storage tank above the water heater . additionally , with further research and technological consideration , computer technology may find its way into this device for operations at programmed times , monitoring of water use , flow rate and temperature of the water ; initially , this is not a requirement or feature of the present invention . the device is generally designed for retrofit into existing homes . with substantial ease ; however , it is also very well suited to new construction and could be augmented with a variety of storage options , including returning the water to the water heater . the small amount of additional water piping required with this device can effectively be concealed in the new construction . the device is well suited to installation in hotels , motels , apartments , condos or other multi - family facilities . this concept may also be adapted to the food industry dealing with liquids or soups , the pharmaceutical industry and heating and cooling systems in other applications .