Sand filter cleaning apparatus and method thereof
First Claim
1. A sand filter cleaning apparatus comprising:
- a) at least one sand filter having an inlet and an outlet, said inlet being fluidly connected to a raw water pipe circuit and said outlet being connected to a filtered water pipe circuit;
b) a cleaning water pipe circuit fluidly connected to said inlet and said outlet of said at least one sand filter;
c) at least one cleaning means provider for providing at least one cleaning agent, said cleaning agent provider being connected to said cleaning water pipe circuit;
d) a cleaning water source for providing cleaning water, said cleaning water source being connected to said cleaning water pipe circuit;
whereby the cleaning of said filter is effected by circulating said cleaning water in said filter, using said cleaning water pipe circuit, wherein said cleaning water contains said at least one cleaning agent.
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Accused Products
Abstract
An apparatus for cleaning and/or sterilizing sand filter is provided. The apparatus comprises at least one sand filter but preferably a plurality. The apparatus comprises a clean water pipe circuit and a backwash water pipe circuit. Preferably connected to the backwash water pipe circuit is a cleaning and/or sterilizing means provider. On a regular basis and/or when it is detected that the efficiency of the filter has decreased below a certain threshold, cleaning and/or sterilizing means are added to the backwash water in order to remove unwanted particles, bacteria, oils and/or greases, metal deposits and the like that previous simple backwashes failed to remove. A method for using the apparatus thereof is also provided.
23 Citations
24 Claims
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1. A sand filter cleaning apparatus comprising:
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a) at least one sand filter having an inlet and an outlet, said inlet being fluidly connected to a raw water pipe circuit and said outlet being connected to a filtered water pipe circuit;
b) a cleaning water pipe circuit fluidly connected to said inlet and said outlet of said at least one sand filter;
c) at least one cleaning means provider for providing at least one cleaning agent, said cleaning agent provider being connected to said cleaning water pipe circuit;
d) a cleaning water source for providing cleaning water, said cleaning water source being connected to said cleaning water pipe circuit;
whereby the cleaning of said filter is effected by circulating said cleaning water in said filter, using said cleaning water pipe circuit, wherein said cleaning water contains said at least one cleaning agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for cleaning at least one sand filter, said method comprising the steps of:
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a) providing cleaning water;
b) providing at least one cleaning agent;
c) adding said at least one cleaning agent to said cleaning water;
d) circulating said cleaning water in said filter wherein cleaning water contains said at least one cleaning agent. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method for cleaning at least one sand filter, said method comprising the steps of:
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a) providing backwashing water;
b) backwashing said filter with said backwashing water;
c) draining away said backwashing water;
d) providing cleaning water;
e) providing a least one cleaning agent;
f) adding said a least one cleaning agent to said cleaning water;
g) circulating said cleaning water in said filter wherein said cleaning water contains said a least one cleaning agent. - View Dependent Claims (22, 23, 24)
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Specification