If you need to buy a new septic tank, you'll want to consult a contractor as well as your local codes office for guidance on the right kind to buy. You can't purchase one based on cost alone because other factors come into play. Here are a few things you should know before you buy a new tank.

Types Of Tanks

Septic tanks are made of concrete, plastic, or fiberglass. Concrete is the traditional material used and it may be the only type of septic tank allowed in your jurisdiction. That's because the tanks are sturdy and proven to work well. The drawbacks to concrete septic tanks are that they are expensive and heavy to work with.

If you want to save money and your local codes allow it, you may want to buy a fiberglass or plastic tank. These are very lightweight, so they're easier to install. However, because of their light weight, they can pop up and float if not installed properly.

Soil And Climate Considerations

The type of soil on your property and the weather temperatures have an effect on the size of tank you should buy. If you have mostly sand or silt, water will drain quickly in the drainfield. If you're building a septic system on clay, you may need to bump up the size of your tank. That's because water drains slowly in clay and you don't want water rushing in faster than it can drain out.

If you live in an area where it gets very cold in the winter, then the decomposition process will slow down quite a bit during the cold months of the year. To keep your tank from getting too full or needing frequent cleanings, you'll want to install a larger tank to start with.

Family Size

The biggest determining factor in choosing the size of your tank is the number of people who will use the tank on a daily basis. A plumber can help you calculate the size of tank you need based on the expected number of gallons of water and waste that go down your drains daily. Your local codes office may be able to help in this area too. There may be regulations in place that stipulate the size of tank you must have based on the number of bedrooms in your home. If you have a garbage disposal, it might count as an additional bedroom when it comes to calculating septic tank size.

Choosing the right size for your tank is important. You'll spend money needlessly if you buy a tank that is too big. If you buy one that is too small, you run the risk of stressing the system. Water and waste needs to be held in the tank to allow time for decomposition. If the water flushes through too fast, it could cause problems with the drainfield. Plus, the smaller tank you buy, the more often you'll have to pump it out, which increases the operating expense. Paying more upfront for a suitably large tank could save money in the long term. Contact a company like AAA Septic Tank Service for more information.