Bottom drain installed with white and black Sikaflex (ran out of black in the middle). I added some couplings and headless bolts (thank you, mr. hacksaw) on the three bolts because the original bolts were about 1/2" too short. Three pieces of 3/4" PVC went around the bolts. The 3/4" pipe in the middle with the check valve are for the air diffuser.
FILE NAME: 01_BD.JPG | DATE: 9/23/05 10:48 PM | CAMERA: Canon (Canon PowerShot S1 IS) | RESOLUTION: 2048 x 1536 | NATIVE FOCAL LENGTH: 33.871mm (35mm FOCAL LENGTH: 222mm) | FLASH: Flash did not fire, auto | EXPOSURE TIME: 1/60 sec | METERING MODE: Multi-segment | EXPOSURE MODE: Auto bracket | APERTURE: F3.5 | ISO SETTING: Auto