481 Cathcart, 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 
Aacra Backflow (360) 668-1117
WA, 98296
4 miles from Cathcart
A WESCO SEPTIC SERVICE (360) 668-6561
WA, 98296
1 mile from Cathcart
Postema Enterprises (360) 668-2452
WA, 98296
1 mile from Cathcart
A Wesco Septic Service (360) 668-6561
WA, 98296
1 mile from Cathcart
WA, 98296
1 mile from Cathcart
Northlake Septic Inc (425) 486-1233
WA, 98077
5 miles from Cathcart
A WESCO SEPTIC SERVICE (360) 668-6561
WA, 98296
1 mile from Cathcart
Postema Enterprises (425) 486-1664
WA, 98296
1 mile from Cathcart
S V GRESO (425) 788-9345
WA, 98290
5 miles from Cathcart
S V Greso Inc (360) 563-0710
WA, 98290
5 miles from Cathcart
Arlington, WA, 98223
24 miles from Cathcart
Family owned and operated septic pumping and repair company. Read More
Whalen Designs (360) 794-5506
WA, 98272
6 miles from Cathcart
WA, 98082
6 miles from Cathcart
Sos Septic Pumping (360) 794-4619
WA, 98290
6 miles from Cathcart
SOS SEPTIC PUMPING (360) 794-4619
WA, 98290
6 miles from Cathcart
List your business here for free - Learn More
If you are building a Cathcart, 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.

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 Cathcart, 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 Cathcart, 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.

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