Manual Hand Agitation is often a paddle crank method that stirs the sealcoat as you switch the crank on a single end on the tank. These are incredibly efficient For anyone who is making use of sand in the sealcoat liquid. Saves you time and expense. A great new asphalt https://asphaltsealcoating87531.wikiitemization.com/4885793/the_single_best_strategy_to_use_for_sealcoating_company_jacksonville