
After about 10 minutes of operation, check the return fittings for air bubbles. A continuous flow of air indicates leaks in the suction line. Locate and correct any leaks immediately. CONTROLLING PUMP DISCHARGE Keep the gate valve in the suction line fully open during operation. To control the discharge, use a valve in the return line. Do not retighten strainer Ring-lok during operation. Do not operate pump with closed suction or discharge valve. WATER CHEMISTRY Proper and consistent use of chem