Dry debris and heavy rain can load outdoor drain openings quickly.
Long dry stretches leave outdoor drain inlets and cleanouts open to dust, leaves, and loose soil carried by the wind. When a heavy rain follows, that material washes toward low points and into drain openings instead of staying on the surface. A drain problem that begins around an outdoor opening needs more than a quick look at the nearest fixture; the route and location of the restriction matter.
Mineral residue also collects on fixture strainers and aerators inside Tye homes. Cleaning that visible buildup helps water pass through the fixture, but it does not explain a true backup in a sink, tub, or shower. When water is slow farther into the drain, we trace the restriction in the branch line rather than treating the surface debris as the whole issue.
The pattern of affected drains helps separate one kind of work from another. One slow fixture points in a different direction than a whole bathroom group draining poorly, while several drains backing up together puts attention on the building drain or buried sewer. Clearing a localized trap or branch blockage is not the same job as clearing the main line, so we start by establishing where the stoppage reaches.