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"I'm in the middle of a home addition and while digging for a sewer reroute my contractor ran into a huge concrete septic tank which was abandoned in the late" 70's with sewage still in it! I made frantic phone calls to pumping services and luckily got hold of . He was at my house within an hour. His pleasant and fantastic attitude made the whole disaster calmer. Big thumbs up! My remodel wasn't delayed as a result.

-Therese R.

"This was a difficult job due to the tank location yet he didn't balk or charge me additional funds. I would highly recommend this company.

-Lisa L.

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Local Articles in Seattle

Septic tank

How To Maintain a Septic System

A contractor describes how to properly maintain your septic system and drain field. Here are five tips to help.

man flushing septic system

Septic Systems

Septic systems are commonly used in rural areas and sometimes in areas not served by a municipal sewage system. Septic systems absorb household sewage and distribute the liquid waste into a designated leach field where natural processes can reclaim it. However, solid wastes and grease must be pumped out of the septic system periodically.

plumber lowering camera into sewer pipe

A backed up toilet, sink or shower can cause a homeowner to run to their computer for the first plumber’s number they can find.

Septic tank worker on the job

Don't ignore a foul smell coming from your septic tank. The problem will only get worse.

professional septic tank pumper cleaning residential tank

Follow these safety precautions when working on or near your septic system.

septic tank distribution box (Photo by Eldon Lindsay)

Do you believe these septic tank suburban legends?

Angie's Answers


In almost all areas, you have to get a permit from the county or city to rebuild a septic tank or leach field - permit cost typically $150-600, though can reach $2000 in some areas for a new installation. The reason is they will then come out and inspect the installation and review the test results from the civil engineer, from whom a design and soil percolation test and construction inspection report will be required before they issue an operating permit.

If you have a question on the process, the county or city most likely has a permit requirements info sheet on their website describing the process and requirements - googel your locale name combined with a search phrase like this - leach field test

The real reason a permit is required is to be sure an engineer designs the field, that the leach field is designed to match the existing soil conditions, and that it is built to the design so hopefully it will neither break through to the surface, contaminate the groundwater, nor contaminate nearby wells or waterways, thereby creating a public nuisance and health hazard.

The reason for the initial presale infiltration capacity test you had done is to provide some assurance to the buyer that the system is likely to work as needed, at least for the forseeable future, and is based on the number of bedrooms and sometimes number of bathrooms in the house as the basis for estimating the "load" the system is likely to see. There are different tests in different locales - some use a minimal criteria of 3 or 4 gpm flow for 20 minutes, other use the more common design guide of 150gpd (gallons per day) per bedroom in the house- some prorated for a 1 hour period, some far more strict by requiring a 24 hour test. 300 gallons in 45 minutes is an extremely stringent criteria - I would check with the buyilding department that this is right, because this adds up to a rate of 9600 gallon sper day - of about 64 bedrooms worth of capacity ! I am sure I have never ever seen that strict a criteria for a residential (as opposed to resort/ hotel/ commercial) septic system, so I would check that the tester did not somewhere add a zero to the volume to be pumped or something.

Also, returning water is not a viable basis for failing the test - the proper way to conduct a test is to pump the specified amount of water, and verify that the water level at the discharge pipe has returned to the original level by the end of the specified time - usually to the invert (bottom) of the pipe, but generally a conditional or "warning" approval will be given to one that does not raise the water table above the top of the 4" discharge pipe during the test time. You might discuss this with the civil engineer before going ahead with a new leach field construction - to me it sounds like the test may have been rigged to fail,, because in-service leach fields would not take 300 gallons of water without raising the water level to the top of the pipe for a period, even though they could take that flow for an extended period ot time.


I would guess that the wrong term was used to describe your problem. What was probably meant was that the leach field was saturated. This is to say that the soil around your leach field is saturated with solids from the septic tank and you may have to have it replaced. If you do not have the tank pumped often enough this can happen as well as just aging of the system. Many people ignore the septic till there is a problem do to out of sight out of mind or the false belief they are saving money. If you have a large family you may have to have the tank pumped every 2 or three years. Some of the towns around here have passed laws to that effect to avoid such problems.



There should be no growth other than grass on your leach field - for brush, bushes or trees use the kill-all Roundup herbicide to kill off the entire plant. For roots intruding from outside the leach field, use a root killer like RootX once or twice a year - I would do two treatments a month apart initially if you have root problems. Unfortunately, just killing the roots is not going to solve the problem you currently have, because they decay extremely slowly or not at all in a leach field due to the saturated and greasy conditions - they are almost embalmed in the sludge. If you have a significant problem, you may have to kill them, then get them routed out. This can be a $500-1000 job depending on how your field is designed and how accessible the inlets of the field distribution pipes are.

Septic Tank Cleaning reviews in Seattle


Overall, I was really happy. had a very nice attitude and arrived on time. He was the best quote and competitively priced. He was able to get me into his schedule quickly and called about an hour before he arrived. He and his employee were easy to work with. He had great customer service and his price was great. He also ...More said if I ever sold my home that he would come out and explain the septic tank to the new owners.
- Judy K.

The septic system had stopped working, as indicated by the trouble alarm. Of course this happened at the start of a weekend, so we had visions of paying for a repair on premium time. We first contacted Northlake Septic Service, who were not available, but they referred us to , who does the majority of their electrical work. ...More Network assured us that if we used water conservatively, we could get by until Monday to fix the problem, so we set up an appointment for Monday morning. Two men arrived at the scene as scheduled, checked out the possible reasons for the problem, and determined that the pump motor had failed. Unfortunately, that required replacing the entire pump assembly. They left to go get a new pump and returned two hours later to install it. They made sure that everything was working properly before they left. While the pump was expensive, the service call and installation costs were quite reasonable. The service people were friendly, knowledgeable and proficient.
- Dave D.

is the owner and operator of and is hands down one of the best service providers/vendors I've worked with. Period. From start to finish, he has absolutely been a great resource for us as we a) learned all about septics, b) understood the things that are important with the system and c) worked through ...More our decision process on next steps. The system in question has some issues and was very clear and thorough in explaining them to me, articulating what my options would be, and never made me feel like he was rushing to get off to another job or that my questions weren't reasonable and legitimate. After an extended phone consulation (on Labor Day, no less!) he then put me in contact with another septic colleague, followed up with me the next day to make sure we'd had contact, and when the colleague ended up not being available, jumped in his truck and drove at the last minute to the property to take a look himself. He spent a few hours carefully going over everything, demonstrated to me what the problems were, and was totally fair in the price that he charged me for his time. Whether I end up purchasing this house or not, if I EVER have a septic issue, will be at the top of my list. Additionally, my realtor and inspector were also incredibly impressed by his knowledge and professionalism and both are planning on recommending him in the future.
- Amy M.

was very knowledgeable on the phone when I called for an estimate. Quoted me $320-$340 depending on if he needed to locate the tank. He was able to come to my house within 3 days of calling. Was running 15 minutes late and phoned to let me know. Nice and helpful, provided information to me about my system and showed me the workings ...More of the tank. Great service, honest and reliable. Absolutely recommend.

was very prompt, explained everything. Apparently the prior owners hadn't pumped the system for years so it actually took two trips to drain the tanks. The alarm had gone off and fortunately his son was able to also come that day and replace the broken pump.
- Tonia W.

Cevin was very knowledgeable and professional. Their bid was one of the lowest we received. The only reason we chose to go with another company, (two actually) was that one of the two we chose was an excavation company who could also do another large demolition project at the same time. Otherwise I would have hired .
- Angela A.

I really appreciate professionalism and for me the representative from G & N Septic Tank Service was a consumate professional and nice to boot. I had a very good experience and would contact G & N in the future.
- Towela N.

Septic Tank Services in Seattle

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

911 Restoration

724 Belmont Place East

A Advanced Septic

2518 East Valley HWY E

A C Septic Services

1613 5th Street

A&H Septic Systems

5431 Preston Fall City Rd SE
Fall City

A-1 Steve Landscaping & Rockery Inc

9217 South 220th Lane

AA American Septic

27111 167th Pl SE

Abba Excavating, LLC

PO Box 675

Adam's Plumbing & Fire Systems

14325 84th St. Northeast
Lake Stevens

Alberta Septic Systems

8808 144TH PL SE

All American Underground

5628 Old Hwy. 410


17527 NE 67TH COURT

Allied Waterproofing & Drainage, Inc.

4231 S. 3rd Avenue

America's Pride Home Services

23201 126th Ave E


12404 E Gibson Rd

Bailey Sewer & Septic & Drain Co

9513 17th Ave E

Ben Davis Trucking & Excavating

2 Bridlewood Cir

Best Plumbing

4129 Stone Way N

Bigfoot Septic

19544 38th Ave NE

Bob Oates Plumbing, Sewer, & Rooter LLC

600 W Nickerson Street


9226 84TH ST NE

Brent Nuckols Construction Inc

20811 Kaster Rd NW

Brent's Septic

1237 52nd St. NE

Brother's Plumbing Inc

PO Box 2136


419 S 140TH ST

Cascade West Tank Services

18527 28th Ave NE
Lake Forest Park

Chris's Plumbing

1402 auburn way N

Clean Septic Pumping LLC

PO Box 997

Clean-N-Rooter LLC

PO Box 709


19351 8th Ave NE

Crown Plumbing

20210 156th Ave NE

Cuz Concrete

1429 Ave D #193

Cuz Concrete

1416 5th St. #212

Cuz Concrete

8911 Vernon Rd #102
Lake Stevens

Cuz Concrete

26910 92nd Ave NW Suite C5 #139

Dano's Septic Tank Pumping

7124 St Hwy 3 SW

Doc's Excavation and services LLC

225 137th st sw

DP Palmer Painting & Restoration

9773 Arrowsmith Ave S


8630 17TH AVE SW

E R Elite Remodeling LLC

2011 Adams Ave

Economy Septic Svc

PO Box 731292

Ed Heuss Co LLC

5420 Kitsap Way

Evergreen Sanitation Inc

2910 Hartford Rd
Lake Stevens

Express Septic

10321 JM Dickenson Rd SW,
Port Orchard

Forrest & Forrest Construction Services

9353 Skylark Ct
Joint Base Lewis Mcchord

Fox Plumbing & Heating

7501 2nd Ave S

G & N Septic Tank Service

505 F St SE

Green Planet Plumbing

2701 California Ave SW # 224

Green Tech Excavation

9812 Coral Dr SW


9303 54TH AVE NW
Gig Harbor

Hull Electric and Servicellc

17106 17th Ave Ct E

Hunt's Plumbing and Heating

6225 4th St NE

Integrity Septic Pumping

38213 117th Ave E

J and K Plumbing Inc

34127 183rd Ave SE

Jamie's Septic Service

27045 125th Ave SE


PO Box 648

Jim Dandy Sewer & Plumbing

903 N. 128th Street

John's Plumbing & Pumps, Inc

4715 Lacey Blvd SE

Lakeside Septic

PO Box 12081

Lumpy the Plumber

2315 54th Ave SW

M & J Handyman Services, LLC

P.O. Box 1311


801 NW 42nd St Ste 211

McGinnis Electric LLC

PO Box 1283
North Bend




28109 305TH AVE SE

Miller Bay Water Co.

7939 Beachwood Ave. NE

MJO Homes llc.

5723 203rd st sw

Mr. Rooter of Seattle

2000 S. 116th St

NAYCO Construction, LLC

14209 50th Ave SE

Nw Sewer & Drain

PO BOX 55573

O'Neill Plumbing

6056 California Ave SW

Pipe Pro Plumbing LLC

22707 115th St Ct E
Bonney Lake

Price Busters Plumbing

3212 NE 167th St

Protocol Plumbing & Sewer

917 110th Pl SE

Rapid Rooter Inc

902 2nd Ave N

Raymark Plumbing & Sewer

10710 Lake City Way NE

RBW Construction Quality Specialist

16804 426th Pl SE
North Bend

Red Anchor Plumbing, LLC

4570 Avery Lane Suite C Box H

Rescue Rooter Seattle - 9226

175A Roy Rd SW


2551 Albatross Way

Roto-Rooter Plumbing & Drain Services

1130 140th Ave NE


111 79th pl. S.E,

Scottco Plumbing

6335 Augusta Place N.

Seattle Pipeworks

30701 229th Place SE
Black Diamond

Seattle Plumber

815 1st Ave

Sewer Friendly, LLC

23930 Highway 99

Simply Leak Detection

718 Griffin Ave PMB 147

Spartan Services, Inc

760 107th St S

Sterling Plumbing and Fire Safety

1537 NW Ballard Way


PO BOX 950
Maple Valley

The Drain Doctors

13300 Bothell-Everett Hwy

Topline Plumbing LLC

13110 ne 177th pl pmb 316

Vortex Plumbing Inc

9620 S 242nd Ct

Watson Contracting LLC

PO Box 862

WeHoneyDo.com Service Companies

10035 Main St

West Coast Portables

1871 East Johns Prairie Rd.

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