#8 Pool Filter Gravel 55 lb for Sand Filters

LOCAL DELIVERY OR IN-STORE PICKUP ONLY

Proper filtration starts from the bottom up. In a pool sand filter, the gravel layer is just as important as the filter sand itself. #8 Filter Gravel is used as the underbedding layer beneath filter sand to support the laterals, promote even water flow, and prevent sand from entering the plumbing system.

This 55 lb bag of #8 filter gravel is sized specifically for pool sand filters and is a critical component during new filter installations, filter rebuilds, or lateral replacements. Using the correct gravel size helps extend filter life and ensures consistent, efficient filtration.

This is pool-filter-grade gravel—not decorative rock or general landscaping material.

Why #8 Filter Gravel Matters in Sand Filters

Inside a sand filter, water flows downward through the sand bed and exits through the laterals at the bottom. Without a properly sized gravel base, sand can compact unevenly, restrict flow, or damage laterals over time.

#8 filter gravel plays a key role by:

• Supporting the filter sand bed evenly

• Protecting laterals from direct sand pressure

• Preventing sand migration into plumbing lines

• Promoting balanced water distribution during filtration and backwashing

Skipping or substituting the gravel layer often leads to poor filtration performance and premature equipment issues.

Designed for Pool Sand Filter Applications

This gravel is sized to #8 specification, which is the industry-standard size used in pool sand filters. It allows proper water movement while maintaining structural support for the sand above it.

It is commonly specified by manufacturers for:

• Residential sand filters

• Commercial sand filters

• Filter rebuilds and lateral replacements

Using the correct gravel size is essential—too small restricts flow, too large fails to support the sand bed properly.

When to Use #8 Filter Gravel

• Installing a new pool sand filter

• Rebuilding an existing sand filter

• Replacing broken or worn laterals

• Correcting sand blow-back into the pool

• Restoring proper filtration after years of operation

Product Specifications

Installation Notes

The gravel layer is installed before adding filter sand. Once laterals are in place, gravel is added evenly around them, followed by the specified amount of filter sand. Always follow your filter manufacturer’s recommendations for gravel and sand quantities.

Buy with Confidence from Benchmark Pool Supply

When you purchase #8 Filter Gravel from Benchmark Pool Supply, you’re buying a product selected specifically for real pool filtration systems.

You can expect:

• Correct gravel sizing for pool sand filters

• Products chosen for professional pool service use

• Knowledgeable support from pool equipment specialists

• Reliable local supply from a trusted pool retailer

This is the proper foundation for a properly functioning sand filter.