Methodology of Drain Line Jetting
- Require pick-up mounted 1000-gallon vacuum waste water tankers for the execution of cleaning.
- Degreasing and disinfectant chemicals to eradicate grease / sludge accumulation by spray method. With suction tanker grease will be removed from drainage and manholes.
- Drain Line have to be cleaned on the day of servicing using several methods such as the use of pressure water, degreasing agent, disinfectants and manual cleaning etc.
- Grease will be removed using Suction Tanker and will be disposed at Municipality designated disposal areas.
Tools Required for Drain Line Jetting
- Proper Personnel Protective Equipment
- Garbage bags
- High Pressure Water Jetting Washer – Cold
- First Aid Box
- Special Chemical Sprayer
- Safety Shoes
- Truck Mounted 1000 -gallon Vacuum / Sewerage Tankers 11. Basic Tools
- Cleaver, disinfectant & degreaser cleaning chemical
- Warning Tape
- Rubber Hand Gloves
- LED Flashlight
- Goggles for Eye Protection
- Gum Boots
Preparation for Drain Line Jetting
- Obtain necessary work permit from the client.
- All tools and equipment are inspected and are free of defect.
- First Aid and Spill Control kit must be available in the workplace.
- Conduct safety briefing by the way of toolbox talk, and ensure all possible hazards and precautionary measure is identified.
- Cleaning specialist team must wear proper PPE (coveralls, safety boots, eye protection, rubber hand gloves)
- Sludge removal will be the scope of contractor
- The team consists of Site Supervisor, Cleaning Technicians.
Method of Work:
- Safety clothing / equipment required: coveralls, safety boots, eye protection, rubber hand gloves.
- Conduct Safety briefing.
- PHOTOGRAPHS BEFORE & AFTER. Ensure pictures are taken of the following: The front of the building, overall view and the cleaning operations.
- Record the present condition of the system in the After-Service Report.
- Electrical equipments such as pumps, lights, pressure washers must have circuit breaker.
- Use Plastic sheeting on the ground while transferring or mixing chemicals.
- Remove the Grease and Sludge from Grease Trap and manholes and drainage line by using high pressure vacuum tanker
- Drainage line will be cleared by high pressure water jetting and flushing of water.
- Solid sludge will be diluted and removed with the help of suction Pump
- Sufficient quantity of water should be used to rinse and to ensure complete cleaning.
- Prepare After Service Report including before and after photos.
Potential Risk / Hazard:
- Exposure to sharp objects
- Exposure and Contact with cleaning chemical
- Electric shock.
Precautionary Measure / Control:
- Use of Proper PPE.
- All electric operated tools and equipment must be connected in a suitable circuit breaker.
- Is the space likely to or intended to be entered? (eg inspection of parts, maintenance requirements, cleaning)
- Is there a risk of the atmospheric pressure within the space changing to an unsafe level?
- Is the space intended to be, or is likely to be entered by any persons for any reason (e.g. maintenance, production or inspection) is confined
- Restricted space for the means of entry and exit for personnel?
- Is the space designed at normal atmosphere pressure while any person is in the space?
- Is the space likely to contain or once contained?
- An atmosphere that has a harmful level of any contaminant (e.g. fumes, vapor, gas, steam, mist or explosive gas)? An atmosphere which have not a safe oxygen level (e.g. too low or too high)? or any stored substance that could cause engulfment (e.g. sand, garnet, grit, grain)?
- Work Permit will be taken before stating the work from FMD office. All staff will be wearing company uniform
- Emergency contact numbers should provide and display at working area
- Barriers – safety and warning signage’s will be placed
- Prior to entering the space, is there any risk of the atmosphere being unsafe? (e.g. fuel vapors, oxygen deficiency due to decomposing material or explosive vapors)
- Once inside the space, is there a risk of any harmful contaminant or process entering the space or being created from inside? (e.g. fumes, CO or gas leak, pipes, ducts, sewers)
- Could there be insufficient lighting?
- Are there any hazards with the lighting in the space? (e.g. an explosive atmosphere)
- Are any electrical hazards present?
- Is continual communication between the personnel inside the space and the standby difficult?
- Is there a risk of entanglement from moving parts and or plant within the space?
- Does the design, purpose or layout of the space require PPE irrespective of the work carried out inside the space?