As you can see in the picture we have cleared all around the old pool and finished putting all the sandbags in. The block walls of the bio-filter are also in place. You can't see it but all the underground pipes and conduit for the pump power and lights are in place too. The next thing we have to do is add big stone walls to make it look nice (we hope). What have we learned so far? Lesson #1 when laying a block wall. Even if you don't have much cement left and even if Home Depot is closed early on Sunday it still is not a good idea to try and conserve cement by changing the 1 to 3 ratio of cement (along with 25% calcium carbonate added to the cement) to sand. It turns out that the resulting mortar looks just the same but doesn't stick the concrete blocks together. We had to redo the first course of blocks the next day when we bought some cement.
Kadafi's big truck arrived today with the stone. It is from a local "Cantera" and each load of stone costs $200. I will need one more load of smaller stones to place around the tank. The following quicktime video is of the truck dumping the load. It was more spectacular in person because the ground shook.