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How to Choose Between Plastic and Concrete Septic Tanks

When you are shopping for a septic tank, one of the most important decisions you’ll have to make is the type of tank you’ll purchase. Most modern septic tanks are made of either concrete or plastic. Both of these materials have their own unique advantages, so the right style will really just depend on your home and your preferences. Here are some things you need to think about while looking for a septic tank.

Budget

A large concern for many homeowners is the cost of a septic tank. If you want something affordable, plastic is often a good choice. Plastic tanks are quite a bit cheaper to buy than concrete tanks. On average, expect to spend at least a few hundred dollars more if you buy a concrete tank. Since they’re simpler to work on, you’ll also find that your repair bills will probably be a little lower if you pick a plastic tank. Once the tank is at the end of its lifespan, a concrete tank will continue to cost you more than a plastic tank. Concrete tanks can be quite costly to remove and dispose of when their usefulness is done.

Ease of Installation

If you want a simple septic tank installation, plastic might be a better choice. Because of their complex design and heavier weight, concrete tanks tend to require more professional input and take longer to install. The concrete tank installation process can be a little disruptive, so plastic tanks can be more convenient for homeowners to put in. Also, consider the challenges associated with transporting the tank to your property. Concrete tanks are very bulky and heavy, so moving them takes specialized equipment. If you live in a remote area with difficult roads, getting a plastic tank to your home can be significantly easier. It will also be easier to maneuver into place once it reaches your home.

Durability

Concrete is significantly more durable than plastic. A concrete septic tank can last up to 40 years while a plastic tank usually lasts around 30 years. Part of the reason for this longer lifespan is that plastic is more vulnerable to environmental changes. Things like soil vibrations or growing tree roots can cause a plastic tank to break while they barely affect a concrete tank. Consequently, plastic tanks often need more repairs than concrete tanks. Concrete tanks are also stronger, so if heavy equipment rolls over them, they are less likely to break. If your tank is going into an area that could get driven over, concrete is definitely the best choice. Another nice thing about concrete is that it’s not easy to puncture. If you’re doing work near the tank, it’s unlikely that you’ll be able to poke a hole in it.

Soil Type

Your soil will play a big role in your septic tank decision. It is a good idea to get your soil acidity levels tested before picking a tank. This is important because concrete is very vulnerable to acid. In high-acidity soil, cement will start to crumble away. Therefore, some people may need to get a plastic tank regardless of their other preferences. The unique construction of plastic septic tanks makes them work in acidic environments that other tanks cannot handle.

Likelihood of Issues

When it comes to maintenance and potential repairs, both styles have their own disadvantages. The main issue with plastic tanks is that they have the potential to “float.” When the water level is higher than usual, these lightweight tanks can shift, requiring you to repair a lot of your plumbing. Plastic tanks also require more maintenance to stay in good condition. Concrete tanks don’t float and are easier to care for, but they are more susceptible to rust and water-based corrosion. Concrete is also a little more likely to crack over time, especially if the concrete was mixed improperly. If your concrete tank breaks, fixing the issue could be tricky. These tanks can be quite complicated to repair.

Ultimately, if you want something durable and low in maintenance, concrete is a good choice. Meanwhile, plastic can work well if you want an affordable and easy-to-install tank. Still not sure which style is right for you? The experts at [company_name] are happy to help you go over the pros and cons of each design, and we’re comfortable installing both styles. In addition to septic tank installations, we also help people in Puyallup, WA and the whole Pacific Northwest with a variety of other plumbing tasks. We do everything from water heaters and water softening systems to drain repair and gas repiping. To learn more about our full range of services, give us a call today.

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Isaiah Taylor

Service Advisor

Tacoma native Isaiah Taylor has been part of the FloHawks team for four years. As a Service Advisor, he focuses on building strong relationships with customers and making sure they feel confident in the solutions being provided.

Isaiah believes the company’s culture sets FloHawks apart. He appreciates working alongside people who genuinely care about customers and take pride in doing the job right.

At 26, Isaiah is focused on building his career and continuing to grow in the industry. When he’s not working, you’ll likely find him in the gym lifting weights and staying active.

Kevin Elbert

Service Advisor

Born in Olympia and now living in Lacey, Kevin Elbert has spent 11 years serving customers with FloHawks. As a Service Advisor, he is focused on helping homeowners and businesses find solutions when plumbing or septic issues arise.

Kevin’s favorite part of the job is working with customers who need help and finding a path forward that solves the problem. He values being part of a team that takes pride in delivering dependable service when it matters most.

In his free time, Kevin enjoys staying active outdoors. Hiking, camping, fishing, photography, soccer, and travel are some of his favorite ways to spend time when he’s not at work. At home, he stays busy with his four teenagers.

Stephen Redford

Service Advisor

Stephen Redford was born in Tacoma and now lives in Gig Harbor. With 14 years at FloHawks, he’s built a reputation as both a trusted Service Advisor and a key contributor to the company’s growth and outreach.

Stephen plays a role in business development, trade shows, and marketing while also supporting service operations across multiple areas. He appreciates FloHawks’ unique culture and commitment to customer service, believing the team consistently goes above and beyond what most companies offer.

Outside of work, Stephen enjoys walking, playing golf, and riding motorcycles. He’s married to his wife, Lori, and is the proud father of three children.

Janie “J” Kirkland

Service Advisor Assistant

Janie “J” Kirkland was born in Miami, Florida, and now calls Roy, Washington, home. Despite being newer to FloHawks, joining the team mid-2025, she has already become a valued member of the Service Advisor support team.

J enjoys the strong sense of teamwork at FloHawks and the relationships she has built with the people she works alongside each day. That collaborative spirit helps the team deliver the dependable service customers count on.

Outside the office, J loves spending time outdoors, especially at the beach, as well as making memories with her family. She’s the proud mother of two sons and a grandmother to four grandchildren.

Carl Evanson

Service Advisor

A Puyallup native who now lives in Spanaway, Carl Evanson has been helping customers at FloHawks for more than 13 years. As a Service Advisor, he brings deep experience and a practical approach to solving plumbing and septic challenges.

Carl takes pride in helping customers find real solutions to their problems. At FloHawks, the philosophy is simple: if water runs through it, the team can handle it, and Carl has spent more than a decade proving that to customers across the region.

When he’s not working, Carl enjoys camping and spending time with his growing family, which includes two grown sons and seven grandchildren.

Luke Schneider

Service Advisor Assistant

Originally from the Midwest and now living in the Puyallup area, Luke Schneider has spent the past three years supporting the FloHawks service team as a Service Advisor Assistant. His role focuses on logistics and administrative coordination, making sure the details are handled so the team can deliver excellent service in the field.

Luke especially enjoys the moment when everything comes together to solve a customer’s problem. Helping turn a complicated situation into a clear plan and a successful outcome is one of the most rewarding parts of the job.

When he’s not working, Luke loves hosting and entertaining with his wife. Much of their free time is spent with family, often gathered around the table for board games and good conversation.

Crystal Lyons

Service Advisor Assistant

Born and raised in Tacoma and now living in Puyallup, Crystal Lyons has been part of the FloHawks team for four years. As a Service Advisor Assistant, she helps keep operations running smoothly while making sure customers feel supported every step of the way.

Crystal’s favorite part of the job is simple: helping people. Whether she’s assisting the service team behind the scenes or making sure customers get the answers they need, she takes pride in being part of a company that puts people first.

Outside of work, Crystal enjoys camping and spending time with her family. She’s married, and the proud mom of one daughter, and she also helps care for her niece, keeping family at the center of everything she does.