You're not a pest or I would have sprayed you with Dont Bug Me by Fox Farms.
I've looked through all my photos and unfortunately last month I went through and deletted a BUNCH of older photos......including the ones I took when making the waterfarms recirculating..

Did you buy your waterfarms individually or as a set of 8 w/controller? You say you run them all seperately.....do you have a cenral res? If not you can buy a rubbermaid tub that will work fine as a central rez.

I have a pretty detailed diagram on the back of the instructions that came with the upgrade. I will try for a photo of this if you would like. but it is most likely the same thing GH has on its website. I can't really think of how else to explain it.......but I sure love the fact that GH thought it up!