Floor Drain Vapour Block Apparatus and Methiod for Using Same

Abstract

A floor drain vapour block apparatus and method for providing a dependable water level in the vapour block to prevent backflow gases or odours from infiltrating into the area above the floor drain. The apparatus is a two-part assembly having an outer reservoir housing and an inner drain catch cylinder forming a water sealing reservoir space for holding or retaining a plumbing code enforced water level to block gases and odours from infiltrating above the floor level in which the assembly is inserted.

1 . A floor drain vapour block apparatus comprising:
 an outer reservoir housing adapted to be vertically received and retained in a floor drain pipe below a floor level, said outer housing having an upper end having a compression means for sealing and retaining said apparatus in said drain pipe, outer walls and a base forming a reservoir space there between, said reservoir space for retaining a plumbing code enforced water level to block or prevent sewer gases and odorous vapours from infiltrating above said floor level, said outer reservoir housing having a plurality of drain water outlet orifices in said outer walls of said reservoir housing; and   an inner drain catch cylinder attached inside of and to said upper end of said outer housing, said cylinder having a basin for catching and directing drain water into said reservoir space, said cylinder having downwardly depending side walls extending below said code enforced water level in said reservoir space, said plurality of drain water outlet orifices allowing an excess of said drain water entering said basin and passing between said downwardly depending side walls into said reservoir space to be discharged into said floor drain pipe.   
     
     
         2 . The apparatus of  claim 1  further comprising a removable filter assembly adapted to fit within said basin. 
     
     
         3 . The apparatus of  claim 1  further comprising a wind profile deflector in said base of said outer reservoir housing and projecting into said reservoir space. 
     
     
         4 . A method of sealing a vertical floor drain wherein said apparatus of  claim 1  is placed inside said floor drain pipe below said floor level, said compression sealing means is compressed to seal and retain said apparatus in said drain pipe to block or prevent said sewer gases and odorous vapours from infiltrating above said floor level.