You’re purchasing a home. It could be your first time buying, or you might’ve been living in houses for 20+ years. Whatever the case, it’s safe to say that there are a lot of moving parts to manage and aspects to consider. This can make it easy to overlook some of the more behind-the-scenes parts of a functioning house. But if there’s one step you absolutely shouldn’t skip, it’s the septic inspection. A home’s septic system plays a big role in your daily comfort and household safety, but when it doesn’t work the way it should, fixing it can be nightmarish. Let’s talk about why septic inspections matter before purchasing a property, what the process involves, and how to avoid nasty surprises before you sign the dotted line.
What Is a Septic System and How Does It Work?
A septic system is a decentralized wastewater treatment solution commonly used in rural and suburban areas where municipal sewer systems aren’t available. The basic components are the septic tank, the drain field, and the pipes and filters. The general path of waste through your septic system goes like this: waste travels through the pipes into the tank, where solid matter and scum are separated from water. The water is then treated and dispersed into the soil through the drain field.
It’s not overly complicated, and a well-maintained system should operate quietly in the background. But unlike sewer systems maintained by municipalities, the homeowner is fully responsible for repairs and maintenance.
Why Septic Systems Need Regular Care
Septic systems are designed to last 20–40 years, but that lifespan depends heavily on proper use and regular inspections. Lack of maintenance can lead to system failure, groundwater contamination, or even health hazards in your yard or home.
Why You Should Inspect Before Buying
Septic Issues Are Often Hidden
Unlike a leaking faucet or a cracked window, septic system problems aren’t visible during a walk-through. Many issues, like blocked drain fields or high sludge levels, can lurk under the radar without any external signs. An inspection lets you know they’re there before they make themselves known in unpleasant ways.
Avoiding Repair and Replacement Surprises
Depending on the severity, repairing or replacing a septic system can cost anywhere from $3,000 to $25,000. A pre-purchase inspection helps you avoid inheriting a major repair bill and gives you the leverage to negotiate with the seller if you find any issues.
What Happens During a Septic Inspection?
A professional septic inspection typically includes:
- Checking tank levels and structure
- Inspecting the drain field for pooling or foul odors
- Testing for sewer system backflow or slow drainage
- Evaluating filter conditions and pump function, if present
To fully inspect the tank, it often needs to be pumped. This makes space for the technician to look at the condition of the interior and find any cracks, root intrusion, or general wear and tear.
Why a Septic System Might Fail an Inspection
Neglected Maintenance
Septic tanks should be pumped every 3–5 years. If the system hasn’t been maintained, waste can build up, which clogs the system and damages the drain field.
Improper Household Usage
The overuse of water, garbage disposals, and non-biodegradable items flushed down the drain can all strain the system. Even excess soap and grease clog pipes over time.
Aging or Outdated Systems
Older systems may no longer meet code or function efficiently. Some systems installed before modern regulations won’t pass a contemporary inspection.
Are Septic Inspections Required Before Purchase?
In some counties and states, septic inspections are required before purchase. Even when they’re not mandated, many lenders and insurance providers insist on one before finalizing financing.
In Thurston County and other Western Washington areas, specific rules apply to how and when systems must be inspected. Local professionals like us understand and follow these regulations carefully.
Who Pays for the Septic Inspection?
It depends on the circumstances. Most often, the buyer covers the cost to ensure due diligence, but in some competitive markets, sellers may pre-inspect to encourage offers. Also, in some cases, buyers and sellers split the cost as part of contract terms, but not often.
Should You Ever Waive a Septic Inspection?
Waiving a septic inspection can save time in a competitive market, but it’s a risky move. Unless you’re in the industry yourself, you likely don’t have the expertise to assess a septic system’s condition without help. For the most part, you shouldn’t consider the option unless the system is brand-new. Even then, you might want a basic inspection simply for peace of mind.
Can a Septic System be a Deal Breaker?
Not always, but it depends on the inspection. A working septic system means lower utility bills and independence from municipal systems, but it might not be worth it if the system is poor. If the septic system is in bad shape and the seller won’t repair it, you have valid reason to walk away. However, if issues are minor or fixable, you might consider negotiating.
Questions to Ask When Buying a House With a Septic Tank
Asking questions can help uncover the system’s history and reduce future uncertainty. Before closing, make sure to find out:
- When the septic system was last inspected and pumped
- Whether there’s a current service contract or warranty
- Whether the drain field has ever been repaired or relocated
- If you can see records of system drawings or permits
Final Thoughts on Why Septic Inspections Matter
A septic inspection is a small investment that can save you thousands of dollars and countless headaches. If you’re buying a home in Western Washington, knowing the system’s condition from the start gives you the power to make informed decisions. Skipping the inspection risks major unexpected expenses, and no one wants that just after moving in.
Why Choose Goebel Septic for Your Inspection?
Locally owned and operated since 1979, Goebel Septic Services is known throughout Western Washington for our reliable, knowledgeable service. As a family-run business, we offer personalized inspections backed by local expertise and a commitment to customer satisfaction.
If you’re considering a home with a septic system, call Goebel Septic Services to schedule an inspection or get answers to your questions. We’re here to make sure your next move is a confident one.