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CLEANING OF WATER OVER HEAD TANKS & SUMPS

  • CLEANING OF WATER OVER HEAD TANKS & SUMPS
  • OBJECTIVE                                              
  • To lay down a procedure for Cleaning of Water Over Head Tanks and Sumps
  • SCOPE 
  • This SOP is applicable to Water Over Head Tanks and Sumps.
  • RESPONSIBILITY            
  • Technical Supervisor / Engineer
  • ACCOUNTABILITY                    
  • Sr.Executive / Manager
  • PROCEDURE
  • Obtain work permit for carrying out cleaning.
  • Ensure that all safety precautions are taken while cleaning.
  • Drain the water from tank by opening outlet valve and drain valve / drain plug.
  • Close the inlet valve of the OverHead.
  • Clean the tank thoroughly with brush and cleaning agents and ensure that the buttom of sidewalls is free from Algae and tank is free from foreign material.
  • Take sufficient quantity of raw water, clean thoroughly and drain out.
  • Top up OverHead tank with fresh water.
  • Ensure that there are no water leakages and smooth functioning of float valves.
  • Close Dummy plugs and drain valve.
  • Open the inlet and outlet valves of Over Head Tank.
  • Close the manhole of the Over Head Tank.
  • Forms and Records (Annexures)
  • Annexure – I
  • Distribution
  • Master copy –  Quality Assurance
  • Controlled copies- Quality Assurance, Production, Quality Control
  • History
    Date Revision Number Reason for Revision
    00 New SOP

 

Annexure – I

SL.

NO

DESCRIPTION LOCATION CAPACITY

IN KL

1 Over Head Tank – 1 Production Block 50.0
2 Over Head Tank – 2 Production Block 50.0
3 Chilled Water Make Up Tank Production Block 1.0
4 Neocota Scrubber Tank – 1 Production Block 2.25
5 Neocota Scrubber Tank – 2 Production Block 2.25
6 Ganscota Scrubber Tank – 1 Production Block 2.25
7 Ganscota Scrubber Tank – 2 Production Block 2.25
16 Cooling Tower Make up Tank Service Block 60.0
17 Cooling Tower Sump – 1 Service Block 40.0
18 Cooling Tower Sump – 2 Service Block 40.0
19 D.M. Raw Water Sump Service Block 60.0

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