Today, along with a million household things, I am going to rinse out a bag of filthy Quikrete playground sand. It's been out back for a long time because I used some when I bought it, and was really not impressed. I did part of it yesterday evening, and it is really bad. It's supposed to be rinsed. If it was, they poured a coffee cup of water onto every 20 kilos of sand. I'd have done better to buy the local brand bags.
I was going to give up and use it for the ice in winter, but once it is clean, it does look okay.
I'm going to try to grab some time and rescape a 75 gallon that I haven't been pleased with for a while.