The system is designed to do one thing: use a perforated pipe set in a gravel trench to gather water and move it to a safe discharge point. Under normal conditions, this prevents the yard from becoming saturated or water from collecting at the side of the house. But there are warning signs when something is amiss. You might see water lingering around the foundation for days, spongy soil, or flooding in the basement after a rain. It is not uncommon for a homeowner to find that a particular part of the yard is wetter than the rest.
Such problems often stem from a clog caused by sediment, roots, or displaced gravel, or perhaps the pipe has collapsed, and the trench no longer has the right slope. In some cases, the original work simply did not direct the water where it should have gone. An inspection will tell us if what is required is a good cleaning, a bit of targeted work, or an outright replacement.