What Is A Pool Dry Pit?

An inground pool dry pit, commonly referred to as a dewatering system or sump pit, is an essential yet often overlooked component of pool maintenance and management. It serves as a designated underground area that removes excess pesky groundwater from around your swimming pool. This setup ensures the longevity and efficiency of the equipment while reducing potential hazards associated with water exposure.

Royal Pools G2 Landscaping has been installing inground pools in Northwest Indiana for over 25 years, and we know just how vital a dry pit is to the longevity and durability of your swimming pool. If you’re unfamiliar with these systems and want to know more, you’re in the right place. What is a pool dry pit? Let’s get into it!

Purpose of an Inground Pool Dry Pit

The primary function of a dry pit is to remove groundwater from surrounding the pool. An accumulation of groundwater around the pool can cause excess hydrostatic pressure to push against the pool walls, which could cause a fiberglass pool to pop out of the ground. With a dry pit, you can drop a sump pump down into the pit and remove the water that has accumulated. 

How an Inground Pool Dry Pit Works

An inground pool dry pit is typically constructed as a waterproof underground chamber near the pool equipment area. A hole about 8 to 10 inches in diameter is dug near the pool’s deep end, which will serve as the pit. The structure is designed to prevent water intrusion and often includes features such as:

• Access hatches: These are for easy maintenance and servicing.
• Waterproof sealing: To protect against groundwater infiltration.

Benefits of Using a Dry Pit

1. Enhanced Equipment Protection – Keeps pumps, filters, and electrical components dry, reducing wear and tear.
2. Improved Safety – Minimizes the risk of electrical hazards in a wet environment.
3. Better Aesthetics – Conceals bulky pool equipment, keeping the pool area visually appealing.
4. Space Optimization – Frees up space around the pool deck by moving equipment below ground.
5. Lower Maintenance Costs – Reduces damage from moisture exposure, prolonging the lifespan of pool systems.

Considerations for Installing a Dry Pit

Before installing a dry pit, pool owners should consider factors such as soil conditions, water table levels, and accessibility for maintenance. Proper construction with high-quality materials and expert waterproofing is essential to ensure long-term durability and effectiveness. This really reflects the good contractors from unexperienced contractors.

Conclusion on Dry Pit

An inground pool dry pit is a practical investment for pool owners looking to protect their equipment and improve safety. By keeping essential components dry and secure, a dry pit enhances the efficiency and lifespan of pool systems while maintaining the aesthetic appeal of the pool area. Proper planning and installation can help maximize these benefits, making pool maintenance easier and more cost-effective in the long run. Check out the video below for more information:

Dewatering system for your inground swimming pool: How to deal with ground water!

If you want to keep learning about all things inground pools, check out these articles below:

Top 3 Most Popular Thursday Pools Fiberglass Designs of 2025

Which Type of Inground Swimming Pool Leaks the Most?

Vinyl Liner Pool Rundown: Pros, Cons, And Manufacturing Process