Water backup preventing system and monitoring system therefor
First Claim
1. A water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding and being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, at least one water storage space into which the overflow water from said opening is to be directed and temporarily stored, said water storage space having a volume to store water which cannot otherwise be accommodated by said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said water storage space, said water storage space having an outlet for removing water therefrom, and a first backflow preventing valve with apparatus for automatically closing the sewer line when a backflow condition develops downstream therefrom and for opening the sewer line to permit flow of water through the sewer line when such condition does not exist or abates, said overflow opening being on the upstream side of said backflow preventing valve.
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Accused Products
Abstract
A water backflow preventing system is provided for a given area having a sewer line for receiving rain and other water where the sewer line is incapable of carrying, without backup, a given flow rate of water. The sewer line is provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will rise and overflow. Water storage tank means are buried in the ground below the sewer line and into which the overflow water from said opening will drain and be temporarily stored. The storage tank means have a volume to store many thousands of gallons of water which cannot otherwise flow in the sewer line. A pump is placed in the bottom of the storage tank means. Various float switches are placed in different parts of the system for controlling the pump. They are arranged to prevent the operation of the pump when water backup valve conditions exist in the sewer line and to automatically render the pump means operative when backflow conditions disappear from the sewer line so that the storage tank means can be substantially emptied and accommodate overflow conditions which can be caused by a subsequent rainstorm.
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Citations
22 Claims
- 1. A water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding and being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, at least one water storage space into which the overflow water from said opening is to be directed and temporarily stored, said water storage space having a volume to store water which cannot otherwise be accommodated by said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said water storage space, said water storage space having an outlet for removing water therefrom, and a first backflow preventing valve with apparatus for automatically closing the sewer line when a backflow condition develops downstream therefrom and for opening the sewer line to permit flow of water through the sewer line when such condition does not exist or abates, said overflow opening being on the upstream side of said backflow preventing valve.
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4. In combination:
- a first water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding and being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, a water storage space into which the overflow water from said opening is to be directed and temporarily stored, said water storage space having a volume to store water which cannot otherwise flow in said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said water storage space, said water storage space having an outlet for removing water therefrom, a second water backflow preventing system like said first system in an adjacent area; and
connection between the sewer lines of these two area so that if the water storage capacity of the water storage tank means of the backup preventing system in one of the areas is exceeded while that of the other area is not, any resulting backup in the sewer lines involved will flow into the sewer lines of the other area where the backup preventing system storage space thereof can store such backup water or water can flow in the sewer lines of the other area. - View Dependent Claims (5, 9, 12, 15, 18, 21)
- a first water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding and being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, a water storage space into which the overflow water from said opening is to be directed and temporarily stored, said water storage space having a volume to store water which cannot otherwise flow in said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said water storage space, said water storage space having an outlet for removing water therefrom, a second water backflow preventing system like said first system in an adjacent area; and
- 6. A water backup preventing system for a given area having a ground buried sewer line for receiving rain and other water, the sewer line being incapable of carrying without backup thereof a given flow rate of water which can cause basement flooding, the sewer line being provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will raise and overflow, a water storage space into which the overflow water from said opening is to be directed and temporarily stored, at least a part of said water storage space extending above said sewer line and the level of the basements in the area and having a volume to store water which cannot otherwise be accommodated by said sewer line when said flow rate of water occurs, means for directing water from said overflow opening to said storage tank means, said water storage space having an outlet for removing water therefrom, and there is provided a backflow preventing valve between said overflow opening and said water storage space to prevent water in said water storage space above basement level from causing water flow into said sewer line and then into basements of buildings having water drain connections thereto.
Specification