How do I install an overflow drain in the catch basin area?
Turn off your waterfall and let the water drain down into the basin area. Make sure the basin is filled to the appropriate level (a few inches below the gravel line). Clear the gravel away from your liner where you’ll use a bulkhead fitting to make a waterproof connection through the liner. Make sure this bulkhead is placed about 1 above your water level. Now connect your pvc pipe to your bulkhead and run it away from your basin area. To see the what a bulkhead looks like and how its installed, refer to chapter two in the video.
