Septic-Scrub from Arcan Enterprises is a chemical additive that removes sludge that develops in the biomat. When a system is holding water with sluggish drainage, Septic-Scrub offers options before drainfield replacement. It is fast-acting (within 24 hours) so the user will know quickly if the problem is resolved. It has a proven track record of successful outcomes. 888/352-7226; www.arcan.com BOOTH #4235