A storm water pit is meant to be a collection point for water on your property, and the drainage system under the pit allows that water to flow away from your home and into the city's sewage and water lines. If your property is prone to flooding or excessive moisture for any reason, a storm water pit and drainage system can be what you need to protect the turf grass, landscaping features, and home's foundation from water damage. Note a few questions you might have about such a pit and system so you can discuss this option with a contractor as needed.
Is it expensive to have a storm water pit installed?
Only a contractor can tell you the cost of a pit and drainage system for your property, but you might ask about a modular system, which is usually an affordable option. This system consists of premade pieces that are locked together to create an underground trench, versus costly concrete that is poured onsite in order to create a drain or more expensive plumbing pipes. Also, keep in mind that the cost of repairs to your home's foundation after suffering water damage will typically be much more expensive than a needed stormwater pit! You may even be financially liable for damage done to a neighbour's home or property because of poor drainage on your property, so consider this drainage system an investment rather than a costly expense.
Why does the property need grading after a pit is installed?
The grade of your property refers to its slope or incline; water will naturally follow this grade, and if the property is not graded properly, water will pool around the home's foundation. When a storm water pit is installed, the property may then need to be graded, meaning raked, compacted, or otherwise treated, so that it slopes toward that pit. This will encourage water to run in that direction, away from your home, and into the drainage system.
What maintenance does a stormwater pit need?
A storm water pit will usually have a grate installed over it, to catch leaves, twigs, and other debris, and this grate or the open pit itself will need cleaning every year, or as often as recommended by your installer. If the drain pit or the pipes get clogged, you may need a plumber to address that clog. The pipes or trench of the drainage system may also eventually suffer damage and need repair or replacement, typically after several years or even decades of use.
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