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Concrete manhole covers

Frequently Asked Questions In addition to providing easy access for inspection, they keep out dirt and rainwater. In the meantime, use a rope through the metal handles on the concrete manhole covers to swing them up and off the tank. The tank is now ready for inspection and/or pumping. What is Septic System failure? A septic system should effectively... See #1 1: http://www.americanconprod.com [c1076592]