A puddle is the visible end of a water story. Before buying a drain kit, sketch roof outlets, paved surfaces, slopes and low points. Note whether the wet area appeared after construction, a new path or a change in irrigation.
Make the water visible on paper
Photograph the same points during and after rain from a safe location. Record when water appears and when it clears. Maryland Extension discusses drainage and compaction among common soil problems. Keep those possibilities distinct: a compacted patch is different from an entire low area receiving runoff.
Check simple contributors
Watch irrigation and look for leaks or repeated overspray. Note roof discharge without improvising a new outlet. A small adjustment may be appropriate for an irrigation problem, while grading and persistent saturation need more assessment. Keep standing water near a building separate from a purely cosmetic turf concern.
Prepare a useful professional brief
Bring the sketch, rain observations and photographs to a qualified drainage or landscape professional. Ask where water would go, how the solution would be maintained and what approvals or utility checks are needed before work. A French drain has to fit the site and have a suitable outlet; it is not a universal lawn accessory.
Distinguish water entering the soil from water moving through it
Maryland Extension explains poor drainage in terms of infiltration into the surface and movement through the soil. Compaction, low areas and restrictive layers can produce similar-looking wet patches. Adding a drain or fertilizer before understanding the source can leave the cause in place. Maryland Extension: Common soil problems.
Make a repeatable rain-event record
- Before rain: mark the existing wet boundary and any irrigation operation.
- During rain, from a safe location: note water arriving from pavement, roof outlets and higher ground.
- After rain: photograph the same boundary and record elapsed time, rather than only “still wet.”
- Next dry interval: note whether the area clears or remains saturated.
These observations support an assessment; they do not measure hydraulic conductivity or establish a drain design. Keep water near a building and any suspected leaking utility in the brief for a qualified professional. Trace a sloped runoff source and separate clay texture from compaction before proposing earthwork.
Do not dig a drain without understanding buried utilities, the outlet and the effect on nearby property.