A Drainage Basin With No Outlet Is Just a Pond

Here is a large drainage basin doing the exact opposite of its job.

Whoever installed it never gave it a real exit point and never drilled holes in the bottom. So the basin just holds water all year round. Instead of moving water off the property, it collects it and keeps it, which means standing water and mosquitoes in the yard every single season.

A basin is not a destination

A drainage basin is supposed to be a collection point on the way to somewhere else. Water comes in, and water leaves through an outlet that runs to daylight or to a larger line. If there is no outlet, the basin fills up and stays full. At that point it is not draining anything. It is a pond with a grate on top.

Standing water is more than an eyesore in Florida. It breeds mosquitoes, it kills grass, and it can keep the soil saturated right up against the house.

The fix is straightforward

This one does not need to be torn out and redone. It needs a real outlet. Tie the basin into a properly graded line that carries the water away, get the flow moving, and the standing water problem disappears.

That is the difference between a basin that works and one that just holds water. Every collection point in a yard drainage system has to have somewhere to send the water.

Common Questions

Why does my drainage basin hold water all the time?

A basin with no outlet and no drilled bottom cannot drain, so it just collects water. It is a pond with a grate until it ties into a graded line that carries the water away.

Does standing water in a basin breed mosquitoes?

Yes. Still water in Florida heat becomes a mosquito nursery within days. Moving the water out through a real outlet removes the breeding ground.

Trufam Drainage. Get a Drainage Assessment at trufamdrainage.com.