Mark Bolton/Corbis

DCL

Some people live in Seattle. This is a fact. You can go to Seattle and people will be there. They will be in shops, driving cars, playing badminton and relaxing near displays of frozen custard. It's like a real city. Rain continuously falls from the sky there. You'd think a place like that would be nearly inhabitable, but over 500,000 wet people call it home.

Although the citizenry may be wet, the ideas that stem from the Emerald City are not. One of the ideas common to Seattle is the drainage system. A drainage system can stop erosion and put excess rainwater in places that it needs to go.

Here are three green reasons to build a drainage system:

1. Contribute to nature. When we build a city, it is a safe bet that the city's presence has disrupted nature. That's an understatement. I live in Los Angeles, a city with little rain. We have a river here that is really pathetic. Decades ago, some people artificially rerouted the river and the river essentially died. Now we have car chases there. In places like Seattle, a drainage system can stop that sort of thing from happening. Seattleites can build drainage systems to fuel creeks that help the fish population and increase the spread for all involved in the food chain.

2. Save topsoil. Topsoil is important. We never have enough of the good topsoil to go around. Intensive rain will wash away topsoil, and your yard could end up looking as though it was marched upon by Tecumseh Sherman. By installing a drainage system, a gardener or lawn enthusiast can save their precious soil.

3. Store Water. Saving rainwater is extremely trendy, but it is also extremely useful. Putting away that rainwater for a, uhm, not rainy day, will allow you to use it in toilets, sprinklers systems and so forth.

Think about installing a drainage system before your yard is all washed up. That pun was horrible.