We have been using the process using
washing soda available in the laundry soap area of larger grocery stores. , 5 gallon bucket for small parts, 55 gal barrel for the larger pieces, Barrels are free from the big car wash in town. My son lined the bed of a spare pickup on the farm with doubled 6 mil plastic. he welded up a rebar grid and sat it on pieces of foam so as to not punch holes and ...