01021cam a2200301 4500 330800842 TxAuBib 19920124120000.0 910514s1991||||||||||||||||||||||||eng|u 91021405 9780830621361 pbk. 16.95 0830621369 pbk. 16.95 (OCoLC)23868524 DLC DLC VPL TxAuBib Alth, Max, 1927- Wells and septic systems / by Max and Charlotte Alth ; revised by S. Blackwell Duncan. 2nd ed. Blue Ridge Summit, PA : Tab Books, 1991. ix, 262 p. : ill. ; 24 cm. Includes glossary and index. 20080327. Purchased by the DCLS Foundation Collection Enhancement Campaign. Wells. Septic tanks Design and construction. Septic tanks Maintenance and repair. Alth, Charlotte. Duncan, S. Blackwell.