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TRUSTED BY WILLIS, MI HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon20
    Verified septic tank services reviews

Top-Rated Septic tank pros in Willis - Updated Nov 2026

Avatar for US Drain, Inc.
US Drain, Inc.
4.3(
12
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Willis, MI and surrounding areas

In business since 1987

Free estimates

Emergency services offered

US Drain, Inc. is family owned and operated for more than 30 years. We are licensed, bonded and insured. Our company is based on the belief that our customers' needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals. We would welcome the opportunity to earn your trust and deliver you the best service in the industry.

Recommended by100%of homeowners
Plumbing Professors
3.9(
47
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Willis, MI and surrounding areas

In business since 2008

Free estimates

Credit card accepted

Plumbing Professors, LLC, has the dedication to get the job done right the first time every time! We are a fully licensed and insured business and we specialize in all aspects of plumbing. We are also an owner operated business so you know we will not only meet, but exceed your high expectations! Let us work for you! With years of experience and references choose Plumbing Professors, LLC, today for all of your specific plumbing needs!

Response time1 day
Recommended by90%of homeowners
Shelton's Construction
3.8(
15
)
Septic System - Install or Replace

Serving Willis, MI and surrounding areas

In business since 2015

Free estimates

Emergency services offered

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time10 hrs
Response rate91%
Recommended by76%of homeowners
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Septic Tanks FAQs, answered by experts

Most septic tanks can handle two to three loads of laundry per day, or a weekly total of between seven and 10 loads. Although septic systems do require homeowners to be somewhat careful with their plumbing systems—for instance, it’s not a good idea to flush a bunch of toilet paper all at once—they can still handle fairly heavy use.

The bacteria already present in your septic system should be enough to break down solids in a properly maintained septic tank. However, if you’re in a DIY mood, you can try adding (well-mashed) rotten tomatoes to help the good bacteria fulfill their duty. Just make sure you give them a couple hours to work after flushing them down.

A septic smell may be harmful because sewer gas is dangerous depending on the exposure amount and length of time. Sewer gas is made up of multiple gases, including hydrogen sulfide, methane, ammonia, and carbon dioxide. Some of these gases, like hydrogen sulfide and ammonia, are toxic to humans and can be fatal in high concentrations or long exposures.

Most well pump pressure switches have a factory setting of 30 to 50 PSI. There’s some flexibility with this if you’d like a lower or higher water pressure, but remember that it should sit 2 to 3 PSI above your well tank’s general pressure setting.

The inside of your pressure switch cover will usually indicate minimum and maximum settings—going below and above the numbers might damage your well pump.

A septic tank with a 1,500-gallon capacity is good for larger homes with up to 6 or 7 bedrooms. The average home can go with a smaller tank, about 1,000 gallons, which supports a home size of up to 2,500 square feet, or a home with about three bedrooms.

The Willis, MI homeowners’ guide to septic tank services

From average costs to expert advice, get all the answers you need to get your job done.