Gray-water reclamation and reuse system

• US 5,106,493 A
• Filed: 02/01/1991
• Issued: 04/21/1992
• Est. Priority Date: 02/01/1991
• Status: Expired due to Fees

• Current Assignee: Todd Mcintosh
• Original Assignee: Todd Mcintosh
• Inventors: McIntosh, Todd
• Primary Examiner(s): Dawson, Robert A.
• Assistant Examiner(s): FORTUNA, ANA M
• Application Number:
  US07/649,472
• Time in Patent Office: 445 Days
• Field of Search: 210/106, 210/107, 210/108, 210/167, 210/768, 210/803, 210/805, 210/96.1, 210/97, 210/195.1, 210/195.3, 210/732, 210/767, 210/744, 210/100, 210/98, 210/195.2 , 210/105, 210/296
• US Class Current: 210/100
• CPC Class Codes: C02F 1/76 with halogens or compounds of halogens C02F1/4674 takes precedence
• CPC Class Codes: C02F 9/00 Multistage treatment of water, waste water or sewage
• CPC Class Codes: E03B 1/04 for domestic or like local supply
• CPC Class Codes: E03B 2001/045 using household water
• CPC Class Codes: Y02A 20/148 using household water from wash basins or showers
• CPC Class Codes: Y02A 20/30 Relating to industrial water supply, e.g. used for cooling

Abstract

A gray-water reclamation and reuse system for collecting, filtering and storing waste water (i.e., gray-water) for reuse where potable quality water is not required comprises a sump for collecting the waste water; a filter connected for filtering the waste water collected in the sump; a tank for holding the filtered filtered waste water; and plumbing and electrically-operated valves for providing waste water to said sump from one or more waste water sources, including shower stalls, bathtubs, sinks and/or clothes washers, the valves being operable by electric controls for diverting the waste water from the sources between the sump and a conventional waste water drain pipe to a sewer, septic tank or the like. A first pump is included for pumping waster water from the sump into and through the filter and into the holding tank and a second pump is included for pumping filtered waste water from the holding tank to one or more recycling uses such as toilet tanks, hose bibs, and/or lawn sprinklers. Another pump is provided for chlorinating waste water in the holding tank. Other electrically-operated valves and plumbing are included for enabling the adding of non-waste water to the holding tank as make-up water and for enabling the back washing of the filter. Electric controls, including a microprocessor, are included for controlling the operation of the various valves and pumps for START UP, NORMAL OPERATION, and BACK WASH modes of operation of the system. In a variation, a replacement stopper is provided for shower stalls and bathtubs; a suction pump and plumbing draw waste water from the shower stall or bathtub to the sump.

Claims

1. A gray-water reclamation and reuse system for collecting, filtering and storing for use waste water, said system comprising:

a. a sump for collecting waste water;

b. filtering means for filtering waste water collected in said sump;

c. a tank for holding filtered waste water;

d. means for providing waste water to said sump from one or more waste water sources, including shower stalls, bathtubs, sinks and/or clothes washers, said diverting said waste water from said one or more sources between said sump and a conventional waste water drain pipe to a sewer, septic tank or the like;

e. first pumping means for pumping waste water from the sump into and through said filtering means and into said holding tank;

f. second pumping means for pumping filtered waste water from said holding tank for one or more recycling uses including toilet tanks, hose bibs, and/or lawn sprinklers; and

g. control means for controlling the operation of said first and second pumping means and said filtering means and connected for controlling said diverting means.

2. The gray-water reclamation and reuse system as claimed in claim 1, including means for chlorinating waste water held in said holding tank.

3. The gray-water reclamation and reuse system as claimed in claim 2, wherein said control means are connected for controlling said chlorination means.

4. The gray-water reclamation and reuse system as claimed in claim 1, including means enabling the adding of nonwaste water to said holding tank as make-up water.

5. The gray-water reclamation and reuse system as claimed in claim 4, wherein said non-waste water adding means include means for connecting a non-waste water supply conduit to said holding tank.

6. The gray-water reclamation and reuse system as claimed in claim 5, wherein said control means are connected for controlling said non-waste water adding means.

7. The gray-water reclamation and reuse system as claimed in claim 1, including means for back washing said filtering means.

8. The gray-water reclamation and reuse system as claimed in claim 7, wherein said back-washing means include a conduit connected between said filtering means and an existing waste water drain pipe.

9. The gray-water reclamation and reuse system as claimed in claim 7, wherein said control means are connected for controlling said back-washing means.

10. The gray-water reclamation and reuse system as claimed in claim 1, wherein said means for providing waste water to said sump include means adapted for inserting into a preexisting drain opening in a shower stall or bathtub.

11. The gray-water reclamation and reuse system as claimed in claim 1, wherein said holding tank is operated substantially at ambient pressure.

12. A gray-water reclamation and reuse system for collecting, filtering and storing for use waste water, said system comprising:

a. a sump for collecting waste water;

b. filtering means for filtering waste water collected in said sump;

c. a tank for holding filtered waste water;

d. means for chlorinating waste water held in the holding tank;

e. means for adding of non-waste water to the holding tank as make-up water, the water adding means including means for connecting a non-waste water supply conduit to the holding tank;

f. means for providing waste water to said sump from one or more waste water sources, including shower stalls, bathtubs, sinks and/or clothes washers, diverting said waste water from said one or more sources between said sump and a conventional waste water drain pipe to a sewer, septic tank or the like;

g. first pumping means for pumping waste water from the sump into the through said filtering means and into said holding tank;

h. second pumping means for pumping filtered waste water from said holding tank for one or more recycling uses including toilet tanks, hose bibs, and/or lawn sprinklers; and

i. control means for controlling the operating of said first and second pumping means, said control means being also connected for controlling said filtering means, said diverting means, chlorination means, and said non-waste water adding means.

13. The gray-water reclamation and reuse system as claimed in claim 12, including means for back washing said filtering means, including a conduit connected between said filtering means and an existing waste water drain pipe, and wherein said control means are connected for controlling said back-washing means.

14. The gray-water reclamation and reuse system as claimed in claim 12, wherein said means for providing waste water to said sump include means adapted for inserting into a preexisting drain opening in a shower stall or bathtub.

15. A gray-water reclamation and reuse system for collecting, filtering and storing for use waste water, said . system comprising:

a. a sump for collecting waste water;

b. filtering means for filtering waste water collected in said sump;

c. a tank for holding filtered waste water, said tank being operated substantially at ambient pressure;

d. means for providing waste water to said sump from one or more waste water sources, including shower stalls, bathtubs, sinks and/or clothes washers, said waste water providing means including means for diverting said waste water from said one or more sources between said sump and a conventional waste water drain pipe to a sewer, septic tank or the like;

e. first pumping means for pumping waste water from the sump into and through said filtering means and into said holding tank;

f. second pumping means for pumping filtered waste water from said holding tank one or more recycling uses including toilet tanks, hose bibs, and/or lawn sprinklers;

g. means enabling the adding of non-waste water to said holding tank as make-up water, said water adding means including means for connecting a non-waste water supply conduit to said holding tank;

h. means for back washing said filtering means, including a conduit connected between said filtering means and an existing waste water drain pipe; and

i. control means for controlling the operation of said first and second pumping means, said control means being also connected for controlling said diverting means, said filtering means, said non-waste water adding means and said back-washing means.

16. The gray-water reclamation and reuse system as claimed in claim 15, including means for chlorinating waste water held in said holding tank and wherein said control means are connected for controlling said chlorination means.

17. The gray-water reclamation and reuse system as claimed in claim 15, wherein said means for providing waste water to said sump include means adapted for inserting into a preexisting drain opening in a shower stall or bathtub.