You can see the sump a little clearer here. I have a temporary basket hanging under the water flow to try and filter out some of the free floating green algae. The water is very green right now since I have not yet built a shade cover for the main tank. I used an old garden hose for the water lines rather than build an overly complicated pvc pipe set up. Total cost of fixtures to run water to the grow beds was less than 30 dollars.