Retrofit drainage system

Abstract

A retrofit drainage system for removing excess water from sites having no built-in drainage system. The retrofit drainage system minimizes the risk of pollution in general and specifically avoids environmental spills from disposal equipment, while affording inherent water testing capabilities. The present invention does not use electrical or mechanical engines, but rather utilizes conduits extending between an inlet disposed in a body of excess water and an even lower outlet, therebetween the present invention provides an elevated funnel and funnel valve and shutoff valve for selectively controlling the flow of water from inlet to outlet.

What is claimed is: 
     
         1 . A system for retrofitting a drainage system to a site with no built-in drainage system, comprising:
 a second portion providing a funnel fluidly connected to a funnel valve downward thereof;   a first portion providing a first conduit fluidly coupling an inlet and the funnel valve; and   a third portion providing a third conduit fluidly coupling an outlet and the funnel valve, the outlet providing a shutoff valve,   wherein the funnel valve is disposed upwardly relative to the inlet and the outlet, and wherein the outlet is disposed downwardly relative to the inlet.   
     
     
         2 . The system of  claim 1 , further comprising the system not having a power source. 
     
     
         3 . The system of  claim 1 , further comprising a cap movable between an open condition and a closed condition closing off a funnel inlet of the funnel. 
     
     
         4 . The system of  claim 1 , further comprising a filter operatively associated with the inlet. 
     
     
         5 . The system of  claim 1 , wherein the first conduit is the third conduit. 
     
     
         6 . A system for retrofitting a drainage system with no power source to a site with no built-in drainage system, comprising:
 a second portion providing a funnel fluidly connected to a funnel valve downward thereof;   a first portion providing a first conduit fluidly coupling an inlet and the funnel valve;   a third portion providing a third conduit fluidly coupling an outlet and the funnel valve, the outlet providing a shutoff valve;   a cap movable between an open condition and a closed condition closing off a funnel inlet of the funnel; and   a filter operatively associated with the inlet,   wherein the funnel valve is disposed upwardly relative to the inlet and the outlet, and wherein the outlet is disposed downwardly relative to the inlet.   
     
     
         7 . A method of retrofitting a drainage system to a site having excess water but not having a pre-existing drainage system, comprising:
 providing the retrofit drainage system of  claim 2 ;   placing the inlet in the excess water;   closing the shutoff valve;   opening the funnel valve;   filling a funnel inlet of the funnel with water sufficient to prime the retrofit drainage system;   closing the funnel valve; and   opening the shutoff valve from siphoning a flow of the excess water from the inlet to the outlet.   
     
     
         8 . The method of  claim 7 , further comprising the step of selectively engaging the funnel valve to control the flow.