Why do drainage systems fail years after installation?
Over time, soil settles, sediment accumulates, roots intrude, and new landscaping can redirect water into areas the original system wasn’t designed to handle.
What happens if drainage pipes aren’t sloped correctly?
If pipes are too flat, water stalls and sediment builds up. If improperly pitched, soil erosion and structural undermining can occur. Correct slope is essential for long-term performance.
How do I know if my underground drainage system is failing?
Signs include recurring puddles, standing water in catch basins, sinking areas in the lawn, or hardscape settling. If pooling returns after storms, the system may not be functioning properly.
Why does water resurface even with underground drainage installed?
Water resurfaces when pipes are undersized, improperly sloped, clogged, or lack a proper outlet. If water cannot exit quickly, it will return to the surface.
How much water should a residential drainage system be designed to handle?
A drainage system should account for roof runoff, surface runoff, and soil saturation during heavy storms. It should move water efficiently off the property without allowing it to resurface.
Can poor drainage cause foundation damage without basement flooding?
Yes. Water can cause soil movement, settlement, and pressure against foundation walls without visible basement flooding. Exterior damage often appears first.
How do I keep water away from my house foundation?
When it comes to keeping water away from your house, the best thing you can do is to redirect it away. The overall goal is to create a way for the water to continuously flow away from the house. This creates positive drainage where your home needs it most, close to the house.
Sometimes grading alone will not work, so our team of professionals at Tommy Pollina Landscape has extensive experience installing drainage systems. Drainage systems also factor in when grading alone will not solve the problems caused by water retention. You may have to consider installing drainage systems like:
- Surface Drains
- Underground Drain Tile
- French Drains
- Connections To Municipal Drainage Systems (where allowable)
- Sump Pump Discharge
How do I stop water drainage in my yard?
The short yet obvious answer is to reroute the water away from your house, but it may not be that simple. If the slope of your yard is wrong you may have yard drainage problems caused by improper grading. After a hard rain or even watering, you may notice pools of standing water that are not readily absorbed into the ground. It’s not uncommon to have basement seepage and flooding or foundation problems caused by poor grading that allows the water to flow toward your building’s foundation. In these cases, Tommy Pollina’s crews will alter your yard’s grade in such a way to alleviate these problems.
Why does my yard still flood after installing a French drain?
Most French drains fail because they lack proper slope, sufficient collection points, or a reliable discharge location. In clay soils common in Chicagoland, a French drain alone may not move water fast enough without additional catch basins or solid piping.
What causes water to pool near my foundation after heavy rain?
Pooling is usually caused by improper grading toward the house, short or clogged downspouts, compacted soil, or hardscape that traps runoff. Water must be directed away from the foundation and properly collected.