Portable toilet chemical recharge system and method

Abstract

A portable toilet chemical recharge system and method includes a water source and a main conduit with a water valve, and a liquid chemical solution source with a chemical conduit and a chemical pump, the chemical conduit connected to the main conduit downstream from the water valve. A chemical pump timer engages and disengages the chemical pump, and a chemical flow control valve controls chemical flow through the chemical conduit. The water valve, chemical pump timer and the chemical flow control valve cooperatively control flow through the main and chemical conduits to provide a pre-injection water flush period, a liquid chemical injection period wherein liquid chemical flows into the main conduit, and a post-injection water flush period.

1 . A portable toilet chemical recharge system comprising:
 a water source;   a main conduit in liquid transmission connection with said water source at the inflow end thereof, said main conduit including a first main conduit section and a second main conduit section;   a water valve operative in an open and closed position and interposed between said first and second main conduit sections of said main conduit operative to allow the flow of water from said water source through said first main conduit section and onwards through said second main conduit section;   a liquid chemical solution source;   a chemical conduit in liquid transmission connection with said liquid chemical solution source, said chemical conduit including a first chemical conduit section and a second chemical conduit section;   a chemical pump interposed between said first and second chemical conduit sections of said chemical conduit operative to draw liquid chemical from said liquid chemical solution source through said first chemical conduit section and force liquid chemical onwards through said second chemical conduit section;   said second chemical conduit section connected in liquid chemical solution transmission to said second main conduit section whereby liquid chemical is added to the water flowing through said second main conduit section;   a chemical pump timer operative to engage and disengage said chemical pump;   a chemical flow control valve operatively connected to said second chemical conduit section for controlling flow of liquid chemical through said second chemical conduit section;   said chemical pump timer and said chemical flow control valve operative to control liquid flow through said main conduit and said chemical conduit with said water valve set to an opened position initiating the flow of water for a pre-injection water flush period wherein water flows through said main conduit, said chemical pump timer initiating operation of said chemical pump and opening of said chemical flow control valve for a predetermined liquid chemical injection period wherein liquid chemical flows through said chemical conduit through said chemical flow control valve into said main conduit to mix with said water such that the resulting water/chemical mixture flows out of said outflow end of said main conduit, said chemical pump timer operative to close said chemical flow control valve and disengage said chemical pump upon a predetermined amount of liquid chemical being added to the water flow through said main conduit, said water valve set to a closed position stopping the flow of water following a post-injection water flush period.   
   
   
       2 . The portable toilet chemical recharge system of  claim 1  wherein said chemical flow control valve is a solenoid valve. 
   
   
       3 . The portable toilet chemical recharge system of  claim 1  wherein said pre-injection water flush period is between approximately one and approximately ten seconds. 
   
   
       4 . The portable toilet chemical recharge system of  claim 1  wherein operation of said chemical pump during said predetermined liquid chemical injection period results in injection of between approximately one to approximately ten ounces of chemical into said main conduit. 
   
   
       5 . The portable toilet chemical recharge system of  claim 1  wherein said water valve is set in the open position during said pre-injection water flush period, said predetermined liquid chemical injection period and said post-injection water flush period and results in flow of between approximately one to approximately seven gallons of water from said water source. 
   
   
       6 . A portable toilet chemical recharge system comprising:
 a water source;   a main conduit in liquid transmission connection with said water source at the inflow end thereof, said main conduit including a first main conduit section and a second main conduit section;   a water valve interposed between said first and second main conduit sections of said main conduit operative to allow water to flow from said water source through said first main conduit section and onwards through said second main conduit section;   a liquid chemical solution source;   a chemical conduit in liquid transmission connection with said liquid chemical solution source, said chemical conduit including a first chemical conduit section and a second chemical conduit section;   a chemical pump interposed between said first and second chemical conduit sections of said chemical conduit operative to draw liquid chemical from said liquid chemical solution source through said first chemical conduit section and force liquid chemical onwards through said second chemical conduit section;   said second chemical conduit section connected in liquid chemical solution transmission to said second main conduit section whereby liquid chemical is added to the water flowing through said second main conduit section; a chemical pump timer operative to engage and disengage said chemical pump; a chemical flow control valve operatively connected to said second chemical conduit section for controlling flow of liquid chemical through said second chemical conduit section;   a switch operatively interposed between an electrical power source and the chemical pump timer for engaging said chemical pump timer by permitting electricity to flow to the timer upon said switch being engaged; said switch, said chemical pump timer and said chemical flow control valve operative to control liquid flow through said main conduit and said chemical conduit with said water valve on the open position for a pre-injection water flush period wherein water flows through said main conduit, said chemical pump timer then initiating operation of said chemical pump and opening of said chemical flow control valve for a predetermined liquid chemical injection period wherein liquid chemical flows through said chemical conduit through said chemical flow control valve into said main conduit to mix with said water such that the resulting water/chemical mixture flows out of said outflow end of said main conduit, said chemical pump timer then operative to close said chemical flow control valve and disengage said chemical pump upon a predetermined amount of liquid chemical being added to the water flow through said main conduit, said water valve placed in the closed position following a post-injection water flush period wherein water flows out of or into said outflow end of said main conduit.   
   
   
       7 . The portable toilet chemical recharge system of  claim 6  wherein said chemical flow control valve is a solenoid valve. 
   
   
       8 . The portable toilet chemical recharge system of  claim 6  wherein operation of said chemical pump during said predetermined liquid chemical injection period results in injection of between approximately one to approximately ten ounces of chemical into said main conduit. 
   
   
       9 . The portable toilet chemical recharge system of  claim 6  wherein said water valve is set in the open position during said pre-injection water flush period, said predetermined liquid chemical injection period and said post-injection water flush period results in flow of between approximately one to approximately seven gallons of water from said water source. 
   
   
       10 . A method of chemically recharging a portable toilet, said method comprising:
 a. providing a water valve operable to allow water to flow from a water source;   b. moving said water from said water source for a pre-injection water flush period, said water flowing from said water source through a main conduit, said main conduit comprising a first main conduit section and a second main conduit section, wherein said water is drawn from said water source through said first main conduit section and onward through said second main conduit section;   c. providing a chemical pump operable to transfer liquid chemical solution from a liquid chemical solution source;   d. pumping said liquid chemical solution from said liquid chemical solution source for a predetermined liquid chemical injection period, said liquid chemical solution flowing from said liquid chemical solution source through a chemical conduit, said chemical conduit comprising a first chemical conduit section and a second chemical conduit section, wherein said liquid chemical solution is drawn from said liquid chemical solution source through said first chemical conduit section and forced onward through said second chemical conduit section;   e. introducing said liquid chemical solution into said water through said second main conduit section via said second chemical conduit section connected in fluid transmission to said second main conduit section such that the resulting water/chemical mixture flows out of said main conduit;   f. discontinuing the pumping of said liquid chemical solution at the conclusion of the predetermined liquid chemical injection period, such that a predetermined amount of liquid chemical solution was added to the water flowing through said main conduit; and   g. discontinuing the flow of said water from said water source following a post-injection water flush period.   
   
   
       11 . The method of  claim 10  further comprising: engaging a chemical pump timer by permitting electricity to flow to said chemical pump timer upon a switch being engaged, said chemical pump timer operative to engage and disengage said chemical pump for pumping said liquid chemical solution. 
   
   
       12 . The method of  claim 10  wherein said chemical conduit section further comprises a chemical flow control valve operatively connected to said second chemical conduit section for controlling the flow of liquid chemical solution through said second conduit section. 
   
   
       13 . The method of  claim 10 , further comprising: engaging said chemical pump timer and said chemical flow control valve by permitting electricity to flow to said chemical pump timer upon a switch being engaged, said water valve operative in and open and closed position for controlling the flow of water and said chemical pump timer operative to engage and disengage said chemical pump for pumping said liquid chemical solution such that said chemical pump timer initiates operation of said chemical pump and the opening of said chemical flow control valve for said predetermined liquid chemical injection period, wherein liquid chemical solution flows through said chemical conduit through said chemical flow control valve into said main conduit and said chemical pump timer is operative to close said chemical flow control valve and disengage said chemical pump upon a predetermined amount of liquid chemical solution being added to the water flowing through said main conduit and said water valve stops the flow of water following said post-injection water flush period wherein water flows through said main conduit. 
   
   
       14 . The method of  claim 10 , wherein said pre-injection water flush period is between approximately one and approximately ten seconds. 
   
   
       15 . The method of  claim 10 , wherein said predetermined liquid chemical injection period results in injection of between approximately one to approximately ten ounces of chemical into said main conduit. 
   
   
       16 . The method of  claim 10 , wherein said pre-injection water flush period, said predetermined liquid chemical injection period and said post-injection water flush period results in flow of between approximately one to approximately seven gallons of water from said water source. 
   
   
       17 . A method of chemically recharging a portable toilet, said method comprising:
 a. initiating the flow of water using a water valve for a pre-injection water flush period wherein water flows through a main conduit, said water valve interposed between a first and a second main conduit section of said main conduit operative to allow the flow of water from a water source through said first main conduit section and said second main conduit section;   b. initiating the operation of a chemical pump using a chemical pump timer and opening of a chemical flow control valve for a predetermined liquid chemical injection period, said chemical pump interposed between said first and second chemical conduit sections of said chemical conduit operative to draw liquid chemical solution from said liquid chemical solution source through said first chemical conduit section and force liquid chemical solution onwards through said second chemical conduit section, said second chemical conduit section connected in liquid chemical solution transmission to said second main conduit section whereby liquid chemical solution is added to the water flowing through said second main conduit section, wherein liquid chemical flows through said chemical conduit through said chemical flow control valve into said main conduit to mix with said water such that the resulting water/chemical mixture flows through an outflow end of said main conduit;   c. discontinuing operation of said chemical pump and closing said chemical flow valve by said chemical pump timer such that a predetermined amount of liquid chemical solution is added to the water flowing through said main conduit;   d. discontinuing the flow of water by closing said water valve following a post-injection water flush period wherein said water flows through said main conduit.   
   
   
       18 . The method of  claim 17 , further comprising: simultaneously opening said water valve and engaging said chemical pump timer and said chemical flow control valve by permitting electricity to flow to the timer upon a switch being engaged, said chemical pump timer operative to engage and disengage said chemical pump for pumping said liquid chemical solution such that said chemical pump timer initiates operation of said chemical pump and the opening of said chemical flow control valve for said predetermined liquid chemical injection period, wherein liquid chemical solution flows through said chemical conduit through said chemical flow control valve into said main conduit, and said chemical pump timer is operative to close said chemical flow control valve and disengage said chemical pump upon a predetermined amount of liquid chemical solution being added to the water flowing through said main conduit, and closing said water valve following said post-injection water flush period wherein water flows through said main conduit. 
   
   
       19 . The method of  claim 17 , wherein said predetermined liquid chemical injection period results in injection of between approximately one to approximately ten ounces of chemical into said main conduit. 
   
   
       20 . The method of  claim 17 , wherein said pre-injection water flush period, said predetermined liquid chemical injection period and said post-injection water flush period results in flow of between approximately one to approximately seven gallons of water from said water source.