Patent ID: 8221632
Filing Date: 2012-07-17
Classification: E03F

Abstract:
1. A surface water filtration apparatus for use with a catch basin connected to an outflow, comprising: a removable plate configured for insertion into said catch basin and for being retained therein to define a catch basin interior beneath said removable plate, said plate having first opening therethrough and a second opening therethrough with a removable cover for selectively opening a closing said second opening; a removable grate defining a primary water filter; a perforate strainer extending through said first opening through said plate and into said catch basin interior, said perforate strainer having an open upper end, mesh side walls and an imperforate closed lower end and said strainer defining a secondary water filter; a tertiary water filter extending into said catch basin interior such that said tertiary water filter surrounds said perforate strainer, said tertiary water filter comprising mesh fabric material for filtering contaminants passing through said primary and said secondary water filters between said inner and outer layers of mesh fabric material; wherein said water filtration apparatus defines a first water flow path through said primary, secondary and tertiary filters and wherein said second opening through said removable plate defines an access port to water that has flowed through said primary, secondary and tertiary filters.