excellent,thanks for the close up pics Brian....I see the 3 way elbow on the pump output serves as a drain too,I wasn't understanding that in the first pic either,that's very clever.....and the effluent output from the main body exits the top and enters the bottom of the second chamber and out the top of the second chamber....that's simple enough I think even I can do it LOL
do you think an Eheim 1262 pump would work well for the recirculating pump ? or should I looks for something different ? I also have a Little Giant 4-MDQX-SC with 1325GPH I'm using for my return pump now,I plan to replace it with a ReeFlo Dart that I have,I could use the Little Giant on the reactor if you think the Eheim 1262 would be too small...that looks like a seriously strong flow pump you're using