SOP Title: Cleaning of Over Head Raw Water Tank
- Objective:
To define written procedure for Cleaning of Over Head Raw Water Tank.
- Scope:
This procedure is applicable for the Cleaning of Over Head Raw Water Tank installed in the Engineering Department.
- Responsibility:
3.1 Engineering Department: To prepare and review the SOP. To follow the procedure laid down for the Cleaning of Over Head Raw Water Tank as per this SOP.
3.2 Quality Assurance Department: To review and approve the SOP and Annexures. To ensure compliance of the procedure.
- 4. Accountability:
Head, Engineering Department / Head, Quality Assurance Department.
- Procedure:
- Definitions:
5.1.1 Engineering Associate: Executive or Operator of Engineering Department trained to perform duties as per this SOP.
5.2. Operational Procedure:
| Safety Precautions/Instructions: | ||
| 5.2.1 | Wear appropriate Personal Protective Equipment while Cleaning the Over Head Raw Water Tank. | |
| 5.2.2 | Plan the Over Head Raw Water Tank cleaning activity prior to the due date of Cleaning. | |
| 5.2.3 | Material Safety Data Sheet for all chemicals is to be collected and use in case of any emergency. | |
| 5.2.4 | Use proper maintenance tools while cleaning the Over Head Raw Water Tank. | |
| 5.2.5 | Ensure that a trained person is carrying out the cleaning activity. | |
| 5.2.6 | Inform to the user department before the start of cleaning activity. | |
| 5.2.7 | Ensure that all cleaning activities are supervised by another individual until completed. | |
| Equipments and Chemicals Required: | ||
| 5.2.8 | 1. Plastic Brush.
2. Bucket. 3. Dusting Cloth & Sponge. 4. Potassium Permanganate. 5. Neutral Liquid Detergent (Labolene/Extran). 6. Water. |
|
| Procedure for the Cleaning of Over Head Raw Water Tank: | ||
| 5.2.9 | Open the top cover of the Water Tank. | |
| 5.2.10 | Ensure the respective water line valve of the water tank is closed and the drain valve is open. | |
| 5.2.11 | Ensure tank is empty before cleaning activity and drain out the water by opening the bottom valve of the main storage tank and get down inside the tank. | |
| 5.2.12 | Scrub the internal surface of the Over Head Raw Water Tank with a nylon scrubber and wash the surface by water. | |
| 5.2.13 | After scrubbing the walls, drain out the water content completely from over head tank with the help of bottom valve of the main storage tank. | |
| 5.2.14 | Sludge and dirty water generated during cleaning to be disposed by proper waste management procedure. | |
| 5.2.15 | Again scrub with detergent solution (1% Volume by Volume Neutral Liquid Detergent (labolene/extran)) thoroughly and then wash out with raw water. After removing the traces of detergent give final rinse with water again. | |
| 5.2.16 | Finally dissolve 1 gm of Potassium permanganate in 10 liters of water in bucket and scrub the inner surface and bottom of the tank with brush thoroughly. | |
| 5.2.17 | Finally flush inside wall of the water tank with Purified Water till the visual inspection is satisfactory. | |
| 5.2.18 | Update the “Over Head Raw Water Tank Cleaning Record” . | |
| 5.2.19 | Ensure that the Over Head Raw Water Tank is cleaned at least once in six months. | |
| 5.2.20 | Intimate Quality Control Department to collect the rinse sample by sending “Water Sample Intimation Slip” to Quality Control Department. | |
| 5.2.21 | Water Sample Intimation Slip containing two copies (One original and one Carbon copy. | |
| 5.2.22 | After water sample analysis, Quality Control Department sends the carbon copy of “Water Sample Intimation Slip” with result to Engineering Department and original copy retains with Quality Control Department. | |
| 5.2.23 | After receiving the water sample analysis result from Quality Control Department, fill the Over Head Raw Water Tank with the Raw Water and put the tag “Ready for Use” and inform the user department. | |
- Abbreviation:
| Abbreviation | Expansion |
| QAD | Quality Assurance Department |
| EGD | Engineering Department |
| UTL | Utility |
*Note – Ready to use SOP available in “DOWNLOAD” Section.