That is a pretty clever drain design! I do wonder how air tight the system is. Are there rubber/felt seals on the section that fits into the track to prevent the passage of air? I do see small channels on the top sides of the channels, where I assume seals would go. Very interesting!
That is a pretty clever drain design! I do wonder how air tight the system is. Are there rubber/felt seals on the section that fits into the track to prevent the passage of air? I do see small channels on the top sides of the channels, where I assume seals would go. Very interesting!