Plumber in SeaTac, WA

An airport that shares your sewer

The Midway Sewer District covers part of SeaTac alongside Des Moines, Normandy Park, Burien, Kent and Federal Way. What makes SeaTac unusual is what else is in that system. The airport runs its own sewer facilities and an industrial wastewater treatment plant, and its effluent discharges into the district's collection system and outfall.

That arrangement goes back to 1965, when the airport abandoned its own Bow Lake treatment facility as inadequate and began discharging into the district instead. Counting the airport's additional three square miles, the district's total service area comes to about thirteen square miles.

None of that changes what happens in your house, but it does explain why the sewer authority here is a special purpose district with its own board rather than a city department, and why calling the City about a sewer question often gets you redirected.

Residential streets in a commercial city

SeaTac's residential neighborhoods sit in and around a corridor dominated by hotels, parking operations, rental car facilities and freight. For a plumber that produces an unusual split: ordinary house calls that look like any south King County suburb, and commercial work with completely different demands.

The residential stock is largely mid century onward, and it fails in the ways this whole region's housing of that era fails. Aging copper developing pinholes. Laterals with jointed pipe under mature trees. Heaters reaching the end of their run.

The commercial side is a different service entirely, and the priority there is usually downtime rather than cost. A hotel with a floor out of service or a food operation that cannot open is measuring the problem in lost revenue per hour, which is why that work gets scheduled around your operating hours rather than around ours, and why we would rather quote a temporary fix that keeps you trading than a perfect one that does not.

Ground, noise insulation and older retrofits

One genuinely local wrinkle. Large numbers of properties in the flight corridor around the airport went through noise insulation programs over the decades, which brought contractors into houses to work on windows, walls and ventilation.

That is not plumbing work, but it means a lot of houses here have had more hands inside their structure than a comparable house elsewhere, and retrofit work of any kind is a reliable source of pipes that have been disturbed, rerouted or nicked. A fastener driven into a supply line during unrelated work is one of the more common causes of a leak that starts months after anybody was in the house, which is covered on the pipe repair page.

The other consequence is more prosaic. Where houses have been extended or reworked over several eras, the plumbing frequently contains more than one generation of material joined together, and the junctions are where things fail.

Getting to you from Federal Way

SeaTac sits about eight and a half miles north of us, straight up Interstate 5 or Pacific Highway South depending on the time of day. It is comfortably inside the ring where a same day slot is a real offer rather than a hopeful one.

Distance is not the constraint here, the corridor is. Eight miles alongside an international airport behaves very differently at nine in the morning than it does at half past four, and we would rather book you into a slot we can actually hold than name an optimistic one and miss it.

Emergencies are dispatched immediately regardless. Active flooding and sewage in living space do not wait for a better window.

Where SeaTac jobs connect to the rest

SeaTac splits between two kinds of work. Residential calls follow the same pattern as the rest of our patch, with leak detection and drain work leading, while hotel and airport corridor sites are scheduled around trading hours, since downtime there costs more than the repair does. The full service list covers both sides.

We work the neighbouring cities on the same terms, including Des Moines immediately south and Kent inland.