An underground tank can offer the best protection if you want to store water on your property or keep it cool in the summer. However, there are some precautions you must take to ensure your tank remains intact.
How Deep Do You Need to Bury a Water Tank?
The first step is to prepare the site. This involves digging a hole, laying a foundation, and backfilling the area. It is best to have an engineer assess the site before you begin Underground water tanks. They can evaluate the soil and determine if the foundation is stable enough to support the tank. If the foundation is not strong, the tank can lean and crack.
You can use up to twelve inches of clean fill for the backfill. This can be done in layers; each layer should be compacted before the next. You should have a thick cover over the tank when you are done.
You can also install a 4” perforated drainage pipe beside the tank. This will help prevent leaks. The drainage pipe should be installed downhill from the tank. You can then seal the top of the lid with waterproof tape. This will help avoid leaks leading to hundreds of gallons of water.
When burying a water tank, you must ensure the base is firm and able to support the tank. You should also be careful to remove sharp objects from the soil. If you don’t, your tank could puncture and leak without you knowing it.
If you are burying a poly water storage tank, you should get a professional assessment before you start. Some councils require an engineer’s assessment for excavations beyond one metre.