CCI builds washout booths in both stainless steel and 1/2" polypropylene. The standard depth is 24" but they can custom build to any depth or dimensions you want. If you had a stainless steel booth that leaked due to a bad weld I am sure CCI would take care of that if you contacted them. Drains can be located left, right and center which is your choice to accommodate your best draining options. You can also order addition frame holders as well.
They stand behind all of their equipment and will work with you. Prices are very competitive as well.