What psi should a well pressure tank be set at?

• <div><p>The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.</p><p>For example:</p><ul><li><p>If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.</p></li><li><p>If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.</p></li></ul><p>Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.</p></div>

How long will a mound septic system last?

• <div><p>A mound septic system, when properly maintained, can last between 20 and 25 years on average—though some last longer or malfunction sooner than that. The most important part of maintenance is getting an annual <a href="https://www.angi.com/articles/what-is-a-septic-inspection.htm">inspection</a> of the vital parts of the system to ensure they’re in proper working order and not too backed up with sewage.</p></div>

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Q: How do you keep roots from growing into a septic tank?

• <div><p>To keep roots from growing into a septic tank. However, there are other steps you can take if existing tree roots are getting close to your septic tank. For one, you can install root barriers, which physically block roots from reaching your septic tank. You can also use chemical solutions in your yard or plumbing system to deter root growth.</p></div>

Q: How deep should a trench be?

• <div><p>Trenches are typically 12 to 24 inches deep and 8 inches wide. However, the required depth depends on the specific project and local ordinances. For example, a French drain may need to be 18 inches deep, while a water pipe might require a depth of 24 inches and a drainage pipe 36 inches. Your city or county may have specific regulations, so it's wise to consult with an excavation professional to determine the correct depth for your project.</p></div>

Q: What happens when a septic tank is full?

• <div><p>When a septic tank is full, it needs to be professionally pumped. The average cost of a one-time septic tank pump is about $400, or $0.30 per gallon. If your septic tank is full, you may notice that you have issues flushing your toilet, pipes are draining very slowly, or you have a sewage smell lingering in your home or yard.</p></div>

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Verified Reviews for Septic Tank Service pros in Troy, MT

*The Angi rating for Septic Tank Service companies in Troy, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Troy, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on November 10, 2025

Reviewed in November 2025
The tree and stump had to be removed for a new pole barn install. David worked with me to level the area needed and have gravel installed and also leveled. I would work with David again for any future projects.
Cabinet Peak Construction LLC
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Reviewed in February 2025
I needed a structural log replacement done on my log house. Joe and the crew did what was needed efficiently. The work matches the existing log construction. I would recommend them.
Amish Construction, LLC
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Reviewed in March 2024
The work surpassed my expectations!! They transformed a useless area in my home into a highly functioning entertainment area for family and friends. The work is outstanding, it was done in a timely manner and well within budget. Ben and Gage are professionals who care about the work they...
Schnetter Construction
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Reviewed in November 2023
These guys were really on top of it. All of our remodeling needs were met & we are ecstatic with the end result.
MAV Construction LLC
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Reviewed in December 2022
I really liked how Korey kept me informed on how things moved together. I wasn't sure when to schedule the plumber etc. He made everything seem easy and it flowed nicely. The crew were extremely friendly and clean. My kitchen is beautiful! The counters are just perfect. I would recommend...
Allen's Granite & Marble
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Reviewed in September 2020
Steady workers. Did a great job and cleaned up after job was finished! ð
Fabian Painting Services
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Reviewed in August 2020
Dustin was a very helpful person. He explained about filtration and helped find my water quantity problem. He also suggested a couple of temp solutions.
Petty John's the Water Store, Inc.
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Reviewed in March 2020
Very professional, and it turned out beautiful
Elk Valley Contracting & Consulting - Ana Sayfa Facebook
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Find Septic tank pros in Troy

Dynamic Plumbing LLC

5.0(

)

Septic System - Repair

Serving Troy, MT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We pride ourselves on professionalism and delivering complete homeowner satisfaction on every job. As a veteran-owned and operated company, we believe in doing the job right the first time and standing behind our work. We never leave a job unfinished or a homeowner less than 100% satisfied with our level of service. Call today to schedule reliable, high-quality plumbing you can trust.

34 neighbors recently requested a quote

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Troy, MT and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Well. Only problem was delay in response time after claim was filed online. Water tank started leaking Thanksgiving morning and no reply until I called the Regional Manager."

Recommended by81%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Troy, MT and surrounding areas

In business since 1971

Credit card accepted

"Takes for ever to get a return a call. Also took a week to get someone out for repairs. They said they would reimburse me for septic repairs and it took over 3 months for that to happen."

Recommended by65%of homeowners

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RKO Excavation

New to Angi

Septic System - Install or Replace

Serving Troy, MT and surrounding areas

In business since 2021

Free estimates

Small jobs welcome

We are a locally owned company based out of Kalispell, Montana. We're dedicated to providing our clients with the very best in service, installation, and repairs. With years of industry experience, we take an enormous amount of 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 can do anything that you need us to do, please reach out today for a free estimate.

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Mountaintop Enterprises, LLC

2.5(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Troy, MT and surrounding areas

In business since 2011

Free estimates

Emergency services offered

We pride ourselves on being the best Excavation company in the area.\n\nWe've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.\n\nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

+12

Response time1 day

Recommended by50%of homeowners

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Septic Tanks questions, answered by experts

The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.

For example:

If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.
If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.

Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.

To keep roots from growing into a septic tank. However, there are other steps you can take if existing tree roots are getting close to your septic tank. For one, you can install root barriers, which physically block roots from reaching your septic tank. You can also use chemical solutions in your yard or plumbing system to deter root growth.

Trenches are typically 12 to 24 inches deep and 8 inches wide. However, the required depth depends on the specific project and local ordinances. For example, a French drain may need to be 18 inches deep, while a water pipe might require a depth of 24 inches and a drainage pipe 36 inches. Your city or county may have specific regulations, so it's wise to consult with an excavation professional to determine the correct depth for your project.

When a septic tank is full, it needs to be professionally pumped. The average cost of a one-time septic tank pump is about $400, or $0.30 per gallon. If your septic tank is full, you may notice that you have issues flushing your toilet, pipes are draining very slowly, or you have a sewage smell lingering in your home or yard.

A mound septic system, when properly maintained, can last between 20 and 25 years on average—though some last longer or malfunction sooner than that. The most important part of maintenance is getting an annual inspection of the vital parts of the system to ensure they’re in proper working order and not too backed up with sewage.

The Troy, MT homeowners’ guide to septic tank services

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

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