Who cares if rain water builds up in trash cans? Everyone should, because:

1) In warm weather, the accumulated water provides ideal breeding opportunities for mosquitoes: warm dank stagnant water with lots of organic matter;

2) The can or bag becomes heavier for disposal crews to pick up and the waterlogged trash is more expensive to put in the landfill;

3) If the water is dumped on the ground, or runs out through holes in the bag or container, it can generate mud and mess (think soft drinks, improperly deposited animal waste, bits of pizza filling…) — especially not what one wants children and pets poking around in.

Here’s a trash can model designed to keep out water: