181 Mill Valley, CA Septic Tanks and Systems

Is the grass always greener over the septic tank? You might want to ask your California septic tanks and systems expert. More 
CA, 94925
3 miles from Mill Valley
Tank People (415) 877-1877
CA, 94941
QUALITY SEPTIC SERVICE (415) 924-6668
CA, 94925
3 miles from Mill Valley
CA, 94941
sirfert engineering inc (510) 451-2600
oakland, CA, 94612
17 miles from Mill Valley
construction electrical plumbing and more Read More
People Tank (415) 578-3903
CA, 94901
6 miles from Mill Valley
People Tank (415) 578-3905
CA, 94901
6 miles from Mill Valley
CA, 94901
6 miles from Mill Valley
People Tank (415) 578-3906
CA, 94901
6 miles from Mill Valley
CA, 94901
6 miles from Mill Valley
Oakland, CA,
17 miles from Mill Valley
Ajax Plumbing & Heating (415) 931-4733
CA, 94102
12 miles from Mill Valley
Ils Associates Inc. (415) 883-9200
CA, 94949
12 miles from Mill Valley
Coast Sanitary Service (415) 868-2720
CA, 94948
14 miles from Mill Valley
COAST SANITARY SERVICE (415) 868-2720
CA, 94948
14 miles from Mill Valley
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If you are building a Mill Valley, CA 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 Mill Valley, CA 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 Mill Valley, CA 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 Mill Valley, CA residential septic tank and system experts and installers. Read through professional profiles for information on licensing, qualifications and experience.
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