Why does the tank become a source of dispute?
The tank serves everyone yet is invisible in daily life, so nobody thinks of it until a complaint arises. Then each side looks for the person responsible instead of the solution, and time is lost while the tank gets worse.
Tenancy contracts may not mention the tank explicitly, or mention maintenance in general terms, so both sides need a clearer agreement that completes the contract.
It is best to settle it early with a simple question: who takes the initiative, who pays and how often?
The shorter and more clearly written the agreement, the fewer the disputes and the easier any review.
It often happens that cleaning is postponed for years because each side waits for the other, so sediment builds up and later cleaning becomes harder, longer and possibly costlier than regular upkeep.
