Combination of good dr ainage angles Combination of good and bad dr ainage angles Multiple hanging points for best dr ainage angles Zinc drips off causing spik es dags and a very rough surface Natur al dr ain to one point Size of fame and head height of hoists affect quality of dr ain T hick er coating at weld due to higher silicon content of weld metal W eld splatter will be galv anized into the coating and should be removed during fabrication to avoid unsightly appear ance V ent and draining holes 21 C O N C E P T I O N