How much does it cost to run a septic system?

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Septic Tank System Cost
National Average Cost $3,918
Minimum Cost $1,500
Maximum Cost $15,000
Average Range $3,280 to $5,040



Also to know is, how much does it cost to put in a new septic system?

For a house with five or more bedrooms, you'll most likely want a 1,500-gallon tank, and that will cost $15,000 to $25,000. The cost to replace an existing septic system is $3,000 to $7,000, depending on the size and complexity of the job.

Beside above, how long does a septic system last? Typically, a steel septic tank will last between 15 and 20 years. Tanks made of concrete or plastic are usually preferable in terms of longevity. A properly maintained septic system with a concrete tank can last well over 40 years.

Moreover, how much does a 1200 gallon septic tank cost?

House and Gallon Tank Size Considerations

Tank Gallon Size House Size Tank Cost
1,000 3 bedroom $600 - $1,000
1,200 5-6 bedroom $1,200 - $1,600
2,000 Small building (~14 occupants) $1,800 - $2,300
3,000 Larger building $2,900 - $3,900

How much is a septic test?

Inspection costs Depending on the home's location, most septic system inspections cost $100 to $250 — a negligible amount compared with the cost of replacing a drainfield for $2,500 to $10,000. If the inspector uncovers the tank, that can cost an additional $50 to $250, varying based on the depth of the tank.

39 Related Question Answers Found

How many loads of laundry can I do with a septic tank?

Spread it out and do one load a day for several days. A typical washing machine uses 30 to 40 gallons of water per load. If you do 5 loads of laundry in one day, that pumps at least 150-200 gallons of water into your lateral lines. Most septic systems 10 years old or older have a 600-900 square-foot absorption area.

Can a homeowner install a septic system?

A septic tank is a system designed for the safe disposal of sewage. Homeowners typically must have a permit to install a septic tank, and most states require septic tank installers to be licensed or certified.

Can you have a septic tank without a leach field?

This provides a form of treatment of the waste water, which can then pass into the soil. If your septic tank doesn't have a drainage field or soakaway system, the waste water will instead flow through a sealed pipe and empty straight into a ditch or a local water course.

Is a septic system covered under homeowners insurance?

Your septic tank is considered a part of your home, so will be covered by your homeowners policy in cases of sudden damage. Any damage caused as a result of lack of maintenance or neglect however will not be covered. When Does Homeowners Insurance Cover Your Septic Tank?

How do you know if your drain field is bad?


A failing drainfield can have these characteristics: the grass is greener over the drainfield than the rest of the yard; there are odors in the yard; the plumbing backs up; the ground is wet or mushy over the drainfield. The laterals will probably also have standing water in them.

Should there be water in septic distribution box?

You should have nothing in your lines or drop boxes but water. If a line is becoming saturated there may be a half full box of water that is standing or slow moving.

Which is better concrete or plastic septic tank?

Advantages. Plastic septic tanks are watertight and completely resistant to corrosion. They weigh much less than concrete septic tanks making them much easier to install. Concrete septic tanks are very durable and can last for several decades if properly maintained.

Can you put above ground pool over septic drain field?

Above ground pools may be placed over top of septic lines (which 80% of the pools we install are). County code requires the lines to be 36″ under the ground, so as long as you are not placing the pool where there is a steep grade and a great deal of digging into the ground is required, then you should be fine.

How often does a septic tank need to be replaced?

The average household septic system should be inspected at least every three years by a septic service professional. Household septic tanks are typically pumped every three to five years.

What is the difference between a cesspit and a septic tank?


A cesspit is a sealed underground tank that simply collects wastewater and sewage. In contrast, septic tanks use a simple treatment process which allows the treated wastewater to drain away to a soakaway or stream.

How many gallons is a 3 bedroom septic?

What size septic tank do I need?
# Bedrooms Home Square Footage Tank Capacity
1 or 2 Less than 1,500 750
3 Less than 2,500 1,000
4 Less than 3,500 1,250
5 Less than 4,500 1,250

How do I know the size of my septic tank?

For a rectangular septic tank, multiply depth (or inside "height") in feet times width times length. Divide this figure by . 1337 to establish the number of gallons in the septic tank.

How much does a leach field cost?

Although costs vary according to the size of the leach field, soils and costs of local permits, expect to pay between $5,000 and $20,000 for leach field replacement. It is the most expensive component of the septic system.

How do I pay for septic repair?

If an inspection of your septic system indicates that it needs to be repaired, replaced or upgraded, USDA Rural Development can provide assistance through home repair loans and grants. Loans are available for up to $20,000 at a one percent fixed interest rate for up to 20 years.

How can I hide my septic tank lid?


The Do's For Hiding Your Septic Tank
  1. Plant tall native grasses with fibrous roots around the opening to conceal the tank lid from view.
  2. Place a light statue, bird bath or potted plant over the septic lid.
  3. Septic tank risers and covers are an alternative to concrete and blend into green grass.

Can a septic tank cause a sinkhole?

A collapsing sinkhole can cause damage to the structural integrity of your home or other property. Falling into a sinkhole created by a damaged septic tank is the most dangerous. The gases contained inside a septic system are highly toxic, and if immersed in them, asphyxiation will occur.

Can rain affect a septic system?

Yes! Heavy rain and other water sources that oversaturate the soil around your septic tank can cause your tank to flood. This can be a serious and delicate issue, so be sure to contact a septic tank professional when your system is flooded.