Ultimate Guide to Choosing A Septic Tank

If you’re choosing a septic tank for your property, there are a few key factors to take into consideration. We’ve put together a quick guide to ensure you’re buying the best option for your property and home!

How many people live in your home?

The first thing to consider when choosing a septic tank is how many people will be utilising the tank in your home. A two-person home will generally only require a septic tank of 3000L or less, while a family home catering for 4-6 people will likely need a 6000L tank.

How large is your property?

Remember that when you install a septic system, you need to have enough area on your land for a drainfield, in a location that is a suitable distance from your home. The drainfield should be placed on your property where the soil has a good percolation rate to speed up the septic system process. The better the percolation rate, the smaller the drainfield can be.

What kind of tank?

Septic tanks are typically made of fibreglass, concrete or polyethylene. Global’s polyethylene septic tanks come highly recommended because of their lightweight yet sturdy nature. This lends to easier installation but ensured longevity. Global’s range of septic tanks come with a 15-year warranty.


There are many factors to consider when installing your septic tank, which is why we always recommend that this process is undertaken by a certified installer. In many cases, your warranty on your septic tank will be invalid unless it has been installed by a professional.


It is important to follow regulations and guidelines in order to maintain your septic tank so that it has a long life on your property. It is important to have it regularly pumped out by a licensed professional, but also that you are using the correct ‘septic safe’ products when cleaning your home. For more tips on how to properly care for your septic tank, see our helpful guide.

Remember to keep a logbook of when your tank gets cleaned so that you can stay on top of things!

Are you looking to have a septic tank installed on your property? Contact Global to discuss why a polyethylene tank is the best option for your home septic system!

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