One purpose
1. to ensure clean water supply, and meet the two standards of water supply sanitation.
Two scope of application
Cleaning and disinfection of 1. stainless steel water tank
Three content
The 1. year of stainless steel water tank cleaning two times, if special circumstances can increase the number of cleaning. After cleaning, the water quality meets the national standard for drinking water.
2. cleaning work shall be performed by professionals who have obtained the certificate, and the cleaning personnel shall have a health certificate.
3. preparation before cleaning
3.1 the cleaning personnel shall be provided with the necessary electrical and mechanical tools, cleaning tools, disinfection tools and required articles.
3.2 according to the cleaning schedule, report to the management department for the time of the water supply, make a notice a week before the cleaning and notify the owner of the water stop time so that the owner can do the water storage well.
Four cleaning procedures
4.1 close the inlet main valve, close the connecting valve between the water tanks, open the drain valve, and drain the water in the tank.
4.2 let drain valve in the open position, with the blower to the water tank mouth blowing more than 2 hours, so that the air circulation, remove the poisonous gas in the tank, blow in fresh air, easy to work.
4.3 the cleaning leader will call the cleaning personnel and maintenance personnel to explain the cleaning procedures, safety measures, technical requirements and safety precautions.
4.4 put the candles on the bottom of the tank, if not put out, indicating the lack of oxygen inside the tank.
4.5 install 36V line lights for water tank interior lighting.
4.6, cleaning personnel and maintenance personnel into the tank work.
4.7 cleaning staff cleaning and horizontal reinforcement hexahedral stainless steel water tank three times each, for maintenance personnel
The pipe in the tank and the float water level controller are inspected.
4.8 cleaning, complete the back row of stainless steel tank sewage, and then to stainless steel tank bleaching disinfection.
4.9 after half an hour, rinse again into the stainless steel water tank, the disinfection of three after cleaning stainless steel submersible pump out at the bottom of the zodiac, at the bottom of water.
4.10, while cleaning the stainless steel water tank, another check to clean the fastening valve, cleaning the filter screen.
4.11, check the normal work of the facilities, water injection, municipal water, pond water to meet the standard of drinking hygiene.
Five safety precautions
5.1 use safety voltage line lamp, wire insulation is good, and install leakage protection switch.
On the 5.2 stainless steel water tank should wear non slip shoes, send goods tools with rope.
5.3 nobody can enter the tank before the stainless steel tank is oxygen free.
5.4 disinfection personnel must wear protective glasses and masks.
Six non water source water quality problems, the tank should be cleaned after the surface without dirt, no sediment at the bottom, to meet the requirements of drinking water standards.
Seven after the tank is cleaned, a stainless steel tank is accepted by both parties.