Winter can bring new challenges for septic tank owners, including a frozen system that may require septic tank maintenance. Here are some common questions about frozen septic tanks to inform you about what to do to address the issue. 

4 Common Questions About Frozen Septic Tanks

Why do septic tanks freeze?

Any part of your septic system can freeze, including the connecting pipes and tank. In cold weather, the liquid flowing from your home and through the system can freeze and cause blockages and backups. Water also expands when it freezes, which can crack pipes and the septic tank. 

What are the signs of a frozen septic tank?

If you experience any major water issues during the winter, your septic tank might be frozen. Look out for any water source not draining or having trouble delivering a constant flow, such as toilets not flushing or a washing machine not running.

What can be done about it?

If you suspect you have a frozen septic tank, contact a professional immediately. They’ll find the source of the problem and fix it without damaging other parts of your septic system.

Don’t add antifreeze or defrosting additives to the system, attempt to heat the pipes, or continuously run water to thaw the frozen components. You may cause more problems. 

How can I prevent my septic tank from freezing?

Place a layer of mulch, straw, or other loose material eight to 12 inches thick over the pipes, drain field, and tank to provide extra insulation. When you know the temperature will drop to below freezing, run a small but steady stream of warm water through your pipes. Insulating your pipes before the weather gets cold will also help avoid freezing.

If your septic tank has frozen, seek help from Bigfoot Pumping & Thawing in North Pole, AK. With over 25 years of experience, this family-owned business provides annual, seasonal, and emergency septic tank maintenance to residents of interior Alaska. Visit their website to learn more about their 24/7 emergency services, or call (907) 488-9855 to make an appointment for septic tank maintenance.