 | Operation and Maintenance of Water and Sewerage Systems (Ministry of Water - Tanzania - Rwegarulila Water Resources Institute, 1999, 90 p.) |
 |  | (introduction...) |
|  | A. Maintenance of Water Supply Units Principles and General Procedures |
| | 1. Introduction |
| | 2. Operation and maintenance |
| | 3. Inspections |
| | 4. Inspections made before putting the unit into operation for first time |
| | 5. Periodic inspections made normally without interrupting the operation |
| | 6. Periodic inspections made by interrupting the operations |
| | 7. Remedial measures |
| | 8. Records |
| | 9. Maintenance programmes |
| | B. Operation and Maintenance in Tanzania |
| | 1. What is operation and maintenance |
| | 2. Constraints of operation and maintenance |
| | 3. Strategies for operation and maintenance on sustainable basis |
| | 4. Operational problems |
| | C. General Guide Lines in Construction of Water Structure |
| | 1. Intake structures |
| | 2. Pumping stations |
| | 3. Rising main |
| | 4. Water treatment |
| | 5. Gravity main |
| | 6. Water tanks |
| | 7. Distribution system |
| | 8. The design of the sewerage system |
| | D. Operation and Maintenance Tasks and Their Frequencies |
| | 1. Water Supply |
| | 2. Sanitation |
| | ANNEXES |
| | 1. Class Test (in Swahili) |
| | 2. Evaluation Form (in Swahili) |
| | 3. Group work - Operation and Maintenance of the following: |
| | - Intake structure |
| | - Pumping station |
| | - Water treatment unit |
| | - Water mains |
| | - Water tanks |
| | - Sewerage systems |
7. Remedial measures
Remedial activities of maintenance include
1. Repair, replacement, etc., of parts which are damaged, worn or become obsolete;
2. Removal of unwanted external and internal waste build-up;
3. Application of protective paint;
4. Cleaning;
5. Disinfection; and
6. Public relations and education.
The details of the remedial measures should be laid down in writing. Some persons may be able to carry out the job without such written guidelines. What should be strived at is the cultivation of positive habits both during the training and the actual performance of duties. Only thus it will be possible to ensure that the maintenance work is carried out in a systematic manner.
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