Occupants should have a good habit of pouring about half a litre of water into each floor drain at home once a week to ensure water seal in the trap functions properly.

Occupants should have a good habit of pouring about half a litre of water into each floor drain at home once a week to ensure water seal in the trap functions properly.

Occupants should have a good habit of pouring about half a litre of water into each floor drain at home once a week to ensure water seal in the trap functions properly.