RCS Inc. has been serving the Union, Mecklenburg, Cabarrus and Stanley counties for over 38 years. RCS Inc. offers a complete array of portable toilets for all your outdoor bathroom needs. Portable pottie s from RCS Inc. come clean and sanitized and will be supervised by technicians for the duration of the rental. If you're looking to install, maintain, repair or replace your septic system , then RCS Inc. is the company to call. Services include: Complete septic and portable restroom services