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Specialty Products

Drainage Systems > Base Drain

City of Los Angeles DBS gravel bag requirement
City of Los Angeles DBS gravel bag requirement

Gravel bag
Gravel bag 8 ft on center between caisson

Base drain
Base drain connected to bottom of drain board with side outlet

Side outlets
Side outlets connecting to solid pipe connector drain

4in pipe to main collector pipe
4" pipe to main collector pipe


Base drain
Base drain installed along perimeter footing

Inside/Outside corner
Inside/Outside corner

End Outlet
End Outlet




Los Angeles Base Drain for Gravel Bag
Los Angeles Base Drain for Gravel Bag