Hi Mike,
Thnx for the kind comment. On page 6 of this thread I posted 2 diagrams that show the filter and drain set up that should help.
The cliff notes version is 2 diffuser drains 4" gravity feed to 2 Nexus to 2 Sequence pumps (~3200 GPH each) to two 65 watt UV to Bakki shower to Upper spillway to pond. Skimmer and 2 other lines (6 drains to 3 lines by Colorado code) from infiniti edge catch basin area to valves then check valves to 3 Sequence pumps. One pump is 1/3 HP going right back to one TPR that is for "effect" (can turn on/off or up/down depending on how much water needed to go over the infiniti edge. One pump to a Natural Gas Koi Heat Heater to two TPR's and the other pump goes to 2 TPR's.
In the picture, the 5 pump inlets are closest to you under the window, and the 3 pump outlets splitting to 5 TPR's are just "pond side" of those same inlets. Two are between the 4" pipes that will go from the Bakki Shower to the upper spillway. That last 2" visible by itself is a floor drain for under the Bakki Shower.
In the far left (In the picture of the filter room) there will be the quarantine pond. Windows in the wall and door next to it, and a Solatube skylight over it. I will be building the qpond out of 2 x 4's, plywood, liner, diffuser bottom drain gravity fed to seperate nexus. Roughly 4' w by 4' D by 8'-10' L (depending on how much space Shila lets me have. She is already saying that she doesnt get any storage space in this room. I said...Really?


) Possible Barrier curtain (Think hospital type curtain) or wall between the areas. Not ideal to be in same room as filter for main pond, but only way to have it indoors too. Shila said I cant have a 3rd building, although I have my eye on the south side of the filter building just outside that door with a window in it. Nice little greenhouse would fit there against the building. I am so mistreated...LOL The Bakki Shower filter for the main pond will be mostly enclosed by a polycarbonate "structure" for sound reduction and as a barrier. The nexus' all have covers too. So I am hopeful it will be adequate.
Each room will have a exhaust fan and there will be a large dehumidifier. No HVAC type heat to begin with, but probably electric baseboard heat in the winter if need be. In the future, if it turns into a Rain forest.
Nancy, Had a great time but man it was hot!

The pond should be done in July, so yes will be done in time for the show. Would love to show it off if time allows, though there won't be many koi in it as most will be at the show. We live about an hour and 15 min from the show site, and trying to figure how to get there while people are still at show. If I wasn't chairing would be easier...LOL.. Also, there are 2 truly spectacular true koi ponds in Colorado Springs that should be seen if you are coming to my house anyway. That's a whole day. Think many people would be interested/able to stay another whole day like the Monday? Probably could make that happen