top of page
  • mike

The Backfill Eliminator


Since its inception, the Fiberglass Pool Tanning Ledge has skyrocketed in popularity. That popularity also comes with some drawbacks. Most notably was the installation process and the finished product. In the beginning, tanning ledges were found to be unleveled, sagging in the middle and hollow feeling under your feet. Not all that appealing. Honestly it left clients wanting more and we don't blame them. To address those concerns Thursday Pools one of the Largest Fiberglass Pool Manufacturers in the USA went back to the drawing board to improve the finished product of a fiberglass pool with a tanning ledge. The results are the patented Backfill Eliminator by Thursday Pools. To better explain the backfill eliminator we will let Thursday Pools break it down.

Backfill Eliminator®

Tanning ledges are a dream for fiberglass pool owners and Thursday Pools builds some of the largest and strongest tanning ledges in the Industry. However, the installation of fiberglass pools with built-in ledges has traditionally been a challenge. That’s why Thursday Pools is excited to introduce its patented Backfill Eliminator, another innovation designed to make tanning ledges on a fiberglass pool sturdier, as well as easier and more economical to install.

Proper support for built-in tanning-ledges has been a major challenge for installers. If they don’t get it right, the tanning ledge can feel hollow to your step. This can be due in part to the backfill shifting and settling which creates a void. Our patented Backfill Eliminator® (US Patent 10,450, 766), solves this problem.

What is the Backfill Eliminator®?

It’s a specially fabricated structure integrated into the bottom of the pool to which:

  • Allows sturdy and level installation.

  • Permits free flow of groundwater, eliminating the possibility of stagnant water accumulating under the pool or excess groundwater lifting the pool.

  • Features an access point from which pool installers can easily reach plumbing and wiring.

The Backfill Eliminator® works in tandem with Thursday Pools’ patented Geo-Anchor Pool Wall®, which consists of built-in extensions that allow fiberglass pools to be anchored to the earth during installation. It’s a composite structure that has an extra-thick honeycomb core and numerous support pillars.

The structure is added during the manufacturing process and encases the tanning ledge on the pool’s underside. The Backfill Eliminator® provides lifetime structural support to the tanning ledge and one continuous slope for excavation, making it as easy to install as a fiberglass pool without a tanning ledge.

The patented Backfill Eliminator® (US Patent 10,450,766) is just one more way Thursday Pools is working to improve the fiberglass pool experience.

Please note: the Backfill Eliminator is an option on our fiberglass pool designs with tanning ledges; however, it does not come standard on any of them.


As you can see the Backfill Eliminator is poised to help eliminate the issues faced by earlier iterations of the fiberglass pool with tanning ledge. Thursday Pools is an innovative leader in the fiberglass pool manufacturing industry.

*Disclaimer: Pool Pros is not an affiliate of Thursday Pools and is not compensated for writing this article

Content, including images and video are the property of Thursday Pools LLC.

Thursday Pools Website:



Green Bay, WI 

Independent Installer Badge-02.png
  • This website contains an abundance of information that has been created over the last decade or more. Some of the content on this site may reflect prices, perspectives, processes, entities, and names that were relevant at the time but may not be as relevant today. Consumers should consult a Pool Pros associate for the most accurate and updated information based on the unique conditions of their property. Consumers should verify specifications with the installing Pool Pros rather than relying on the information on this website, which is not intended to be a final specification.

  • facebook
  • youtube
  • pinterest
  • twitter
  • instagram
bottom of page