Adding Soil To Level Pool Area

by GB
(Westminster, MD)

I'm installing a 21' above ground pool. Using a transit, I discovered that the area where I want to place the pool is not very level at all. In fact, there is an 18" difference between the low side and the high side.

I want to put the pool in and then build a deck from the back of my house to the edge of one side of the pool. If I dig out the low side 18", I will have to lower part of my deck. So, it would make life a lot easier if I can add soil to the low part so that I won't have to lower the height of my deck where it meets the pool railing.

I do realize that I will have to rent a commercial compactor and really get the added dirt well-compacted, but is this a good idea? I can't find very much information on pools that have been installed on soil that has been built up 18" or more. Please advise!!


Hi GB. I've done it many, many times. In your situation it makes perfect sense, to raise the pool level to the height that works with your deck plans.

You do need to consider your soil conditions and be sure you have soil that can be safely compacted. If not you may consider ordering something like crushed granite from a local sand and rock company. That stuff really packs. In some areas it's called crusher run.

Having soil that will compact is a must, as opposed to sand, or sandy soil, which does not compact. Your second consideration is the ledge you build beyond your pool. If you are raising the pool area try to go at least three feet past the pool edge. The more ledge you add the better. Then you need to consider the landscaping that will hold the ledge in place. Three foot beyond the pool to a straight three foot drop is probably not good, unless you have a block wall in place to prevent future erosion.

When compacting the soil use a combination of water and tamping. It's a great combo. Water and pack the area, let it dry, and do it again. You do this until you feel good about your pool base.

Anytime an above ground pool owner is planning a deck I want to make sure they know exactly how a new liner might need to be installed in their pool. The best way to install an overlap liner is to stretch it over the rails. A beaded liner is perfect for pools where the top rails cannot be removed. You might benefit from checking out these pages to be sure your deck plans work with future liner changes.

Above Ground Pool, Deck and Awning

Overlap Liners

Beaded Liners

Expandable Liner Installation

Beaded Liner Installation

Above Ground Pool Liner Installation