Get matched with top septic tank pros in Washington, UT

Q: What ruins a septic tank?

• <div><p>We&rsquo;ve explained how deep-rooted plants can damage a septic tank from the outside, but plenty of things can ruin it from the inside, too. For example, flushing bulky items (like paper towels, diapers, and wipes) can clog your septic tank. Cooking oil, grease, and household chemicals can also harm your system. And since a new <a href="https://www.angi.com/articles/what-does-it-cost-install-septic-system.htm">septic system costs</a> between <b>$3,460 and $11,450</b>, it&rsquo;s worth following these guidelines.</p></div>

Q: Do I have to add air to a well pressure tank?

• <div><p>Bladder and diaphragm well pressure tanks are usually pre-charged at the factory. Even so, it&rsquo;s important to check the air pressure in the tank using a tire pressure gauge on the relief valve. The instruction manual usually calls for 28 psi. Use a hand pump to add more air or release some air from the tank to reach the desired number. Check the pressure periodically to see if you need to add more air to the tank. </p></div>

Q: 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>

Q: Are concrete septic tanks the most expensive?

• <div><p>Yes. Amongst the four most common types of septic tanks&mdash;plastic, fiberglass, concrete, and steel&mdash;those made of concrete are the most expensive. This is the case for a few reasons, including the fact that they&rsquo;re very heavy, so pros have to use specialized equipment to install them. However, they&rsquo;re also incredibly durable, making the price worth it if it&rsquo;s in your budget.</p></div>

Q: What can I do to prolong the life of my septic system?

• <div><p>The easiest thing you can do to prolong the life of your septic system is to adopt septic-safe practices. This includes not flushing non-biodegradable items, chemicals, or excessive grease down drains and scheduling regular septic tank pumping to prevent buildup. It&rsquo;s also important to fix plumbing leaks promptly and to practice water conservation to avoid overloading the system. To maintain your drain field, avoid heavy vehicle traffic and plant shallow-rooted vegetation in the area. Most importantly, invest in routine inspections and maintenance to detect and address issues early.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your septic tank service project in Washington, UT?

Select your specific project to find the pro for you.

Verified Reviews for Septic Tank Service pros in Washington, UT

*The Angi rating for Septic Tank Service companies in Washington, UT 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 Washington, UT 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 April 06, 2024

Reviewed in April 2024
This a complex situation where the toilet was grouted to the floor of the bathroom and we didn't know what to do. We got on Angi's list and came and gave us an estimate and the plumber had to go to his shop to get a special tool to disconnect the toilet from the floor . All fixed the same day.
Mr Rooter Plumbing of St. George
Request a quote
Reviewed in March 2024
T&H custom home design was contracted on December 20th 2023 to renovate my condo located at 5810 Longwood Drive. Although no formal documents were ever created we established a total cost of $17,000 and a completion date of March 1st 2024. Throughout their tenure working on the condo, they...
T&H Custom Home Design
Request a quote
Reviewed in July 2023
Went great, very professional and thorough. Even took the time to explain the process and importance of tankless maintenance. 100% would recommend!
McArthur Plumbing & Mechanical, LLC
Request a quote
Reviewed in November 2021
They separated items for charity from items to go to the dump, and helped pack up smaller items. They won't handle hazardous waste, though, such as paint and old poison used for gardening so be prepared to do that yourself. Bring your own boxes and bags.
Simple Moves
Request a quote
Reviewed in May 2021
The workers were efficient and helped remove my old water heater. They also asked for preferences on where to install the tankless water heater.
Five Star Air Conditioning, Heating & Plumbing
Request a quote
Reviewed in October 2018
Dan seemed very knowledgeable . He quoted $1175 to install a 50 gallon gas water heater. When he was finished with the job he told me it was going to be $1325 which was $150 more than his quote. He charged $50 for a 3 flue pipe, $50 for an expansion tank & $50 for pan for underneath the tank. I...
A-1 Services, Inc.
Request a quote
Reviewed in June 2018
Adam responded quickly to my inquiry and came to complete the project the same day. His approach was obviously very professional and complete and in a couple of hours, removed the old equipment and installed the new heater and our house was back to normal. He installed the additional anode rod I...
St George Water Heaters
Request a quote
Reviewed in July 2015
They did a great job on fixing our plumbing problems when a tree root began growing into our septic line. They were quick, surprisingly inexpensive, and gave great service. <br />
Walker Plumbing Heating & AC
Request a quote
Reviewed in July 2011
They arrived on time, installed the items and even spoke to the hardware store about a dent in the water heater for which we received a refund. They had to return to check on a leaking toilet and even though it turned out to be a defective tank (we had purchased it from the dealer), they did...
C & D Plumbing Services
Request a quote

Find Septic tank pros in Washington

Mr. Rooter Plumbing of St. George

4.5(

164

)

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

Serving Washington, UT and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"good information input from plumber. no messy job debris left behind. very pleased with service."

9 neighbors recently requested a quote

Recommended by92%of homeowners

Request Quote

Copperhead Plumbing LLC

5.0(

)

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

Serving Washington, UT and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

11 neighbors recently requested a quote

Request Quote

Mr Rooter Plumbing of St. George

4.8(

)

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

Serving Washington, UT and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Great people. I almost look forward to plumbing problems now!"

replaced pressure reducing valve and water lines

+41

Recommended by98%of homeowners

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

Serving Washington, UT and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Absolutely fantastic service! I recently had a major issue with my sewer line, and this team came to the rescue. Their professionalism and expertise were evident from the moment they arrived. They quickly diagnosed the problem and explained the solution clearly. The repair was completed efficiently, and they left the area spotless. I was particularly impressed with their attention to detail and commitment to ensuring everything was perfect. I highly recommend their services to anyone in need of sewer repairs. Five stars all the way!"

+31

Recommended by100%of homeowners

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

Serving Washington, UT and surrounding areas

In business since 2015

Free estimates

Emergency services offered

We are a Family owned and operated business, we take pride in our great employees and the excellence we all strive for in our work. The reward of 100% satisfaction from our customers is our focus and goal, we like to work directly with each client to achieve the result each individual wants or prefers. With over 8 years in the industry we can provide experience and solutions for whatever project or challenges you may have.

Recommended by100%of homeowners

Request Quote

JP Plumbing & Drain Pros

5.0(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Washington, UT and surrounding areas

In business since 2024

Free estimates

Emergency services offered

We are here to provide the best customer service Southern Utah has to offer. From water heaters that decide to leak at 2 AM to those thirsty desert plants that like to grow into your sewer line. We are here for you - Call today!

Response time5 hrs

Recommended by25%of homeowners

Request Quote

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 Washington, UT and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."

Recommended by65%of homeowners

Request Quote

Veater Plumbing, Inc.

5.0(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Washington, UT and surrounding areas

In business since 1996

Free estimates

Credit card accepted

"Dee Condry South Central Ivins · 6 min ago · If you need a very good, honest and thorough plumber, we highly recommend John Veater with Veater Plumbing! Phone number is 435-632-0077"

Response time10 mins

Request Quote

Septic Tanks questions, answered by experts

We’ve explained how deep-rooted plants can damage a septic tank from the outside, but plenty of things can ruin it from the inside, too. For example, flushing bulky items (like paper towels, diapers, and wipes) can clog your septic tank. Cooking oil, grease, and household chemicals can also harm your system. And since a new septic system costs between $3,460 and $11,450, it’s worth following these guidelines.

Bladder and diaphragm well pressure tanks are usually pre-charged at the factory. Even so, it’s important to check the air pressure in the tank using a tire pressure gauge on the relief valve. The instruction manual usually calls for 28 psi. Use a hand pump to add more air or release some air from the tank to reach the desired number. Check the pressure periodically to see if you need to add more air to the tank.

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.

Yes. Amongst the four most common types of septic tanks—plastic, fiberglass, concrete, and steel—those made of concrete are the most expensive. This is the case for a few reasons, including the fact that they’re very heavy, so pros have to use specialized equipment to install them. However, they’re also incredibly durable, making the price worth it if it’s in your budget.

The easiest thing you can do to prolong the life of your septic system is to adopt septic-safe practices. This includes not flushing non-biodegradable items, chemicals, or excessive grease down drains and scheduling regular septic tank pumping to prevent buildup. It’s also important to fix plumbing leaks promptly and to practice water conservation to avoid overloading the system. To maintain your drain field, avoid heavy vehicle traffic and plant shallow-rooted vegetation in the area. Most importantly, invest in routine inspections and maintenance to detect and address issues early.

The Washington, UT homeowners’ guide to septic tank services

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

See all articles

Melissa Graham
•
Aug 3, 2026Aug 3, 2026
How Much Does It Cost to Locate a Septic Tank? [2026 Data]
If it’s been there for a while, it can be hard to find the septic tank in your yard. Learn how much it costs to locate a septic tank with this guide.
Taylor Freitas
•
Mar 18, 2026Mar 18, 2026
How Much Does Septic Tank Repair Cost? [2026 Data]
A damaged septic system can leak odors and sewage, so repairs are urgent. Find out how much septic tank repair costs based on repair type, tank size, and more.
D.P. Taylor
•
Jul 15, 2026Jul 15, 2026
Crank Up Your Understanding of Septic Tank Volume
It’s crucial to install a septic tank with the right volume to avoid wastewater backups. This guide will help you calculate the right septic tank volume.
Jamie Cattanach
•
Jul 10, 2026Jul 10, 2026
What’s the Right Septic Tank Size for Me?
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
Are Septic Tanks Bad? Pros and Cons to Consider Before Moving Into a House With a Septic System
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
Taylor Freitas
•
Jul 9, 2026Jul 9, 2026
How to Build a Small Septic Tank for a Rural Property
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.