Tank count and layout
A villa typically has a ground tank and sometimes a roof tank. A building may have ground tanks, roof tanks and booster arrangements, each with its own inlet, outlet and level controls.
The more tanks there are, the more important it is to agree on the order of work and which tanks stay in service during cleaning.
Ask the team for a short written plan that lists each tank and what will be done to it.
If you are unsure about the layout, a quick walk-through with photos before booking is worth the few minutes it takes.
