Pre-treating stockpiles of sand or salt with SOS™, an offering from EnviroTech Services Inc. (www.envirotechservices.com), will save you money, time, labor, and equipment maintenance. SOS™ is designed to increase melting efficiency, reduce corrosion, eliminate the need to pre-wet, and keep your salt or sand on the road. Adding SOS™ to your stockpiles will enable you to achieve a higher level of service, safer surfaces and reduced environmental impact.