Best Way To Clean And Dry Hydroton???????????

I have 150liters and i just finished harvest and i need to clean it any ideas would be greatful +rep for anyone who helps

That's a lot of hydroton to clean. I'd clean about 1/4 to 1/3 of it at a time in a big trashcan or tub. Use any of the flushing solutions to get rid of accumulated salts, and use hygrozyme to get rid of any leftover roots. I usually dry mine in a couple of 5-gallon buckets with holes in the bottom to strain water. If you have 8 5-gallon buckets, you could use that method. Otherwise, spread the hydroton out over a tarp outside. It'll dry in a few days.