Maintenance is critical to the proper functioning of your septic tank system. Unfortunately, many homeowners have little knowledge regarding waste water systems, which is why it's easy to end up with septic tank problems down the line. One of the septic tank issues you may have to deal with is septic tank scum. It's a build-up of waste that floats on top of the wastewater inside your septic tank. When the scum accumulates to excessive levels, your septic tank has to be pumped out for it to run properly. It's important to know when your septic tank needs to be pumped out, and here are the signs to watch out for. 

Pooling Water

The first noticeable sign that you need to pump out your septic tank is water pooling around the tank. Your septic tank will start overflowing when full, and the septic scum will clog the piping system in your drain field. Besides the overflowing wastewater, clogs in the pipes can also result in pools of water around your septic tank, so watch out for that. 

Greener Parts on Your Lawn

If water is pooling around your septic tank, you may see parts of your lawn, particularly around the septic tank area, appear healthier or greener than others. That's because the overflowing wastewater from your septic tank will act as a fertiliser to the grass, making them look healthier and lush. Keep in mind, however, that a leaky septic tank will also have the same effect, so you should have a plumber inspect the tank to pinpoint the problem. 

Sewer Backups

Sewer backups are another indication that it's time to pump out your septic tank. Is wastewater backing up into your bathtubs, basement areas, sinks or toilets? Your septic tank may have to be pumped out. This will often happen when the septic tank is full, and unless you can stand the terrible odours that usually accompany the sewer backups, call a plumber or septic tank specialist straight away. 

Slow Drains

Slow drains can be a result of clogs in those individual drains so try to unclog them first. If your drains aren't clogged or if they are still slow even after unclogging them, it could be a sign that your septic tank system is full. That's simply because the water from your drains ends up in the septic tank, and if there's no more space for the wastewater, you will have slow drains.