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11 k! 7., Turn on sludge return pump to the manual (M) mode. This will activate sludge return pump and, in tum, transfer the sludge out of the plant. p 8. Repeat foregoing procedure until sludge is reduced to an acceptable level. ALARM CONDITIONS `i In normal circumstances, the alarm system is'�automatically engaged to alert the operator concerning the problem. The standard factory-set alarm conditions are as follows: a. Main incoming power interruption. b. High water levels. c. Circuit breaker trip. In such conditions, the operator should locate the problem as follows: 1. If all pumps are operating satisfactorily and the alarm is still engaged, the problem is excess water. In this case, the problem sIhould be traced as follows: a. Check all sources of input to the system to be sure that a faucet, shower or toilet is not running continuously. b. If effluent is pumped through along }discharge line or to a drainfield, check to be sure that a restriction has not developed downstream from the discharge pump. C. if a lift station is included in the system, check to be sure that groundwater is not y entering into the lift station. h ` 2. Check power source to determine that alarm was not caused by a power failure. it 3. Check all electrical fuses. Replace if blown. 4. Check all electrical circuit breakers. Reset if open. 5. Place all switches in the off (0) mode and then operate system manually until electri- cal breaker opens, thus identifying the malfunctioning pump. 6. When faulty pump is identified, proceed with pump servicing procedure as outlined above. During alarm conditions, it is normally possible for an operator to visually check all components of the system quickly and isolate the problem easily. I i 'f 'i i J 7 i f i 9 r