Thursday, October 20, 2016

"How big does my septic system need to be?" is a common question homeowners ask when they need to either replace or expand their existing system. The answer depends on the amount of water your household uses. Here are some tips to help you figure it out:

• Consider the minimum size requirements in your jurisdiction.

Some jurisdictions have a minimum size requirements, be aware of this before installing any septic tank.

TIP: The capacity of your septic tank should always be about 40% larger than the quantity of sewage flowing into it on a daily basis. A 1,000 gallon septic tank an handle around 600 gallons of sewage per day.

• Consider how many people will be using the system.

You need to consider how many people will be using the septic system. If you have 6 people living under your roof, you will use more water and need a bigger system than a household of just 2 people. However, don't forget to consider any visitors; include the number of visitors you have each year and the frequency of these visits.

• Consider the age of the people living in your household.


It is important to keep in mind that children use more water than adults. The average adult uses between 50 to 100 gallons of water per day (depending on baths, laundry,etc). A baby will use a minimum of 100 gallons of water per day.

• Consider how often you engage in activities that use water.

From flushing the toilet to doing the dishes, and/or laundry, you will inevitably engage in activities that use water.

If you have any concerns or questions before purchasing your septic tank, contact our wastewater expert Mark at 1-800-665-8311 or mark@vanislewater.com.