troughs

Its that time of year when everything is thawing out and things need a good cleaning from the winter. I was wondering what everyone uses to clean out their water troughs, pails, buckets, etc? Do you use bleach, dawn dish soap, or something else? Also, do you use anything to help keep the algae...

I am from South Texas and have extremely sandy soil in my deer pens. This makes it extremely hard to keep a water trough even. I plan on pouring concrete slabs for all the troughs to sit on and therefore stay level and not run over after being cleaned. I would also like to build a structure for...