| The walls made without cement are permeable and thus need no separate provision for drainage. |
| This will effectively help the swift drainage of rainwater during heavy downpours. |
| All I exist on are cups of wheatgrass tea and lymphatic drainage treatment. |
| Chemical drain cleaners will only free up one small section of the drainage system temporarily. |
| The terrain here is flat, and the poor drainage encourages the creation of wetlands and bogs. |
| The Mumbai drainage system was built over a century ago, during the period of British colonial rule. |
