New Territories North 
Number of tanks：2 tanks What type of tank do you need to clean?
Potable water tank
What is the material of the tank?
Concrete, tile
Where is the tank location?
Rooftop
How many tanks do you need to clean?
2 tanks
What is the building type?
Residential building
How many floors does the building have?
Up to 6 floors
What time do you prefer to have the service?
Monday Morning, Early afternoon
Anything else that we need to know?
No
Where is your location?
New Territories,North
