A :B :C :D :E :F :G :H :I :J :K :L :M :N :O :P :Q :R :S :T :U :V :W :X :Y :Z :


Gravel Support Bed

Various layers of different sized gravel and coarse sand placed above the underdrain network to support filter or ion exchange media beds.

The gravel support bed contributes greatly to the distribution and collection of product water and the even dispersal of the backwash water flow.