JKB,

Thanks for the offer but I'll pass. I'm installing the 3 inch flanges tomorrow and will add a 3 X 2 reducer. I wondering if using a 2 inch vinyl hose wouldn't be better than 2 inch PVC to the clarifier tank. I can easily get the right fittings with barbs and can still add a shutoff valve in line.

At the bottom of the clarifier tank install a 't' in the hose so I can shut off flow from the tank, and drain the clarifier tank, when I clean off the filter material and drain the clarifier tank. On the very end of the hose install a male and female screw connection with barbs so I run the line to the floor drain which is about 15 feet away. I already have the hose left over from another project.

When not draining I can mount the disconnected end to the side of the tank as long as the end is higher than the water level.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.