76 Spokane, WA Septic Tanks and Systems

Is the grass always greener over the septic tank? You might want to ask your Washington septic tanks and systems expert. More 
Spokane, WA, US 99208
Licensed Septic System Designer/Inspector Read More 
Metro Engineering Inc (509) 624-9351
Spokane, WA, US 99202
Auto Rain Contracting Llc (509) 487-3430
Spokane, WA, US 99207
Kalin Tom Excavation (509) 238-9469
Spokane, WA, US 99201
J M SCHAEFER COMPANY (509) 534-6566
Spokane, WA, US 99213
Jay R Bonnett Engineering (509) 534-3929
Spokane, WA, US 99202
Mueller Excavating (509) 326-1016
Spokane, WA, US 99205
H & R COMPLETE INC (509) 228-9955
Spokane, WA, US 99201
Mueller Greg (509) 326-1016
Spokane, WA, US 99205
MARSHAL EXCAVATING LLC (509) 465-9036
Spokane, WA, US 99201
MARSHAL EXCAVATING LLC (509) 465-9036
Spokane, WA, US 99210
Belsby Engineering (509) 747-6790
Spokane, WA, US 99201
Ewing's Llc (509) 624-1522
Spokane, WA, US 99224
Sr Sicilia Inc (509) 466-2075
Spokane, WA, US 99217
GOBERS LLC (509) 924-5372
Spokane Valley, WA, US 99206
9 miles from Spokane
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If you are building a Spokane, WA home that isn’t near a sewer system hookup, you’ll want to hire an excavation company that specializes in septic system design and installation. You can find more septic tanks & systems in Spokane Valley, Cheney, Fairwood, Liberty Lake and Mead.

How Do Septic Tank Systems Work?


A large concrete or steel septic tank can hold up to 1,000 gallons of water. Wastewater comes down into the tank on one side from your Spokane, WA home’s sewage pipes and leaves the tank on the other side. Gases go up through a vent pipe through the roof of the house. Wastewater flows out of the septic tank and into a drain field made of perforated pipes, deeply buried and covered in gravel-filled trenches.

The drain field tends to be about 6 feet deep and 2 feet wide. Ultimately, the size of the drain field depends on how well the soil absorbs water, with slow-absorbing soil requiring a larger drain field. About 3 feet of gravel covers the drain pipes, with dirt filling the remainder.

Installing a septic tank system is best left to a licensed advanced wastewater treatment system installer, who can anticipate what size drain field your Spokane, WA system will need. Whether you’re working on a new build or a remodel, make sure your septic expert and installer openly communicates with your contractor or builder. Here are some related professionals and vendors to complement the work of septic tanks & systems: General Contractors, Plumbing Contractors.

Find septic tank and system professionals on Houzz. Narrow your search in the Professionals section of the website to Spokane, WA residential septic tank and system experts and installers. Read through professional profiles for information on licensing, qualifications and experience.
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