ROOF TOP VENT "Warning "

Hi all ,

I just had a call from a mate asking to borrow my carpet Upholstery cleaner , He left the roof top wind up vent open (As its over the shower ) old bob thought it was ok , Anyhow we have had so much rain over the last 3 months he didnt think that the GREY TANK would fill up ,,, as the shower is the lowest point when the tank filled the shower over flowed all the carpet was soaked and smelled real bad ,, I thought as a warning this would be a good post , And yes i just shut mine ,,,,,