Finally seeing the light.
Here is the latest and how it went pics included:
After removing all corals to the frag tank, refugium and Q tank all the rock was moved to a Tub in the garage with a mag drive pump both borrowed from mhurley (Thanks for the tub Mike and to you Joel for helping with the rock move), Fish and critters were also moved to the frag tank. The only glitch was that the pistol shrimp (Pancho Villa) (RKM cover Nov 2005) got into a hole of a large 30 pound rock so we set up a plastic tub as temporary aquarium with it's own heater, recirculation and filter for the rock (Thanks again Joel)
The following day the help crew arrived to help move the tank, thanks a lot to all the ones that showed up and helped move the tank and pull out some of the electrical that had to be relocated to give room to the switching valve. Again I am very greatful for all the response for help I got.
The use of a ladder like a work stand was very useful, if you do it just one recommendation, remove your belt or turn the buckle to the back, while leaning forward I ended up slightly scratching the tank, something that was easily fixed.
The electrical was moved higher in the stand and I took advantage to make a bit cleaner work out of it.
Then proceeded to install and pipe the switching valve. If I wanted to design the stand dimensions around the valve or the valve dimensions for the stand I could have not done a better job. Basically by chance, after piping the two long elbows there was only 1/4" left on each side between the elbows and the tank sides and aligned very well with the top return bulkheads.
When I ran it dry it was somehow noisy, once water was flowing the noise wen down a lot (think water lubrication) and now is quieter than the new IceCap quieter fans I installed in the hood to replace the old ones.
Finished also the top removable piping for the returns and connected installed the bulkheads and piped the drain.
After testing the piping and fixed a leak in the drain between the flex PVC and rigid connector I filled the tank to about half way.
Proceeded to rinse the rock I was going to reuse and get rid of the Aiptasia. After three passes of chiseling, Muriatic acid and pocking holes I deemed it clean and proceeded to arrange the rock on it's PVC supports.
With that done, I proceeded to pour the sand. I had planned to transfer the sand to smaller bags to make less of a mess when pouring but I was so tired I followed the advise from Joel to just take the 20 pound bags and pour them in one at a time. It worked fairly well.
Notice the pic below that small mound of sand is 20 pounds!