Flowtite fiberglass tanks from Containment Solutions are available for both aerobic and anaerobic septic applications. They are designed to eliminate leakage problems, and have EZ-Fit adhesive channels on access openings, making the installation of PVC or fiberglass risers easy. IAPMO Z1000-approved tanks are available in various sizes up to 12-foot diameter including fiberglass baffles and other accessories. 877/274-8265; www.containmentsolutions.com.