Home \ Fortresses \ April 2000 \ 4070 \ 180 Intake Filters

Here is a close up of the two intake filters. This was an early version of them. At this early stage, they consisted of ordinary screen material, the kind you would use for a window, rolled up and held together (embarrassingly enough) with bag ties. Not a very elegant or sturdy design, but it did work--it kept sand, and anything else for that matter, out of the drainage pipes. Here you can see little bits of seaweed that floated into the fortress but did not go down the drain.

The 90° connectors were put on the filters to help prevent them from unrolling. To learn more about them, see the "Drainage System."