Well I ended up with Behr concrete cleaner.I bought a garden pump sprayer,a heavy brush push broom.I sprayed the Behr on and scrubbed it in twice letting it set for about 20 minutes.Spread the Speedy dry and let that soak up the Behr.I scrapped it up in a mound with the wide plaster scrapper.Then picked it up with the coal shovel.Cost all and all about $40 bucks with still haft a gallon of Behr left.Looked better,but was still wet when I left the shop.Have to see what it looks like after it drys.Lesson learned.Never run out of speedy dry.