Self-Serve Car Wash - Starting and Investment Information
should be confirmed with other operating installations and/or thrash pilot testing. Evaluation of equipment should consider capital and operating costs, including polymer, electricity, wash water, solids capture, and ventilation and odor control during dewatering and …Since both contain sand and gravel, it is assumed that the material is consistent between the two pits. Two other test pits, C and D, are dug. The new pits are 300 feet apart. If all the test pits show sand and gravel, it is assumed that the entire area, 300 feet by 300 feet contains sand and gravel.