

I not only had the wrong cement, I had the wrong sand! When I looked back over the instructions for mixing the grout, it says to use Portland white cement - type 1, and fine white sand. I had bought coarser sand, and didn't want to take any chances. There is rain in the forecast on and off til Saturday, and I really wanted to grout today, so I started calling all over to find what I needed. The cement was easy to find, but no one I called seemed to sell white sand - everyone had play sand, which is a little coarser and brown.
It was a beautiful day, so I decided to go over to the
Magic Gardens to see if Isaiah was there. I asked him once if he ever took a day off, and he said definitively, "I take Sundays off." Well, when I asked him that, it
was a Sunday, and he was working, so I suspect he rarely takes a day off. He was there today (Sunday) as well, and was mixing grout when I arrived. I'd brought some pictures of the mosaic to show him, and then asked him where to get the right cement and sand. He told me - it's a store on 15th and Washington, but they are closed . Unlike Isaiah, they actually do not work on Sundays. I was so disappointed. Then, Isaiah said he would give me what I needed. He gave me a 50 lb bag of white sand and half a bag of cement he had leftover, and I made a small donation to the Magic Gardens :)
I didn't get the whole thing grouted, but I did get a good portion done as you can see in the picture.