Pool Filters for Inground Pools

Professional Inground Pool Filtration Systems

Investing in a high-quality inground pool filter is the single most important decision for maintaining a healthy and inviting swimming environment. Inground systems differ from their above-ground counterparts by their ability to handle significantly higher flow rates, larger water volumes, and the increased pressure of permanent plumbing. At Toronto Pool Supplies, we provide Canada’s most extensive range of heavy-duty filtration solutions engineered to keep your water crystal clear throughout the Ontario summer and beyond.

Choosing the Right Filter for Your Inground Pool

Not all filtration systems are created equal. Depending on your backyard setup and maintenance preferences, you should consider three main types:

• Inground Sand Filters: The most traditional and durable option. They are easy to operate with a multi-port valve and require minimal manual cleaning. Best for those who want a “set-and-forget” system.

• High-Capacity Cartridge Filters: These offer superior filtration down to 10-15 microns. Because they don’t require backwashing, they save thousands of liters of water and pool chemicals each season—making them the eco-friendly choice for Canadian homeowners.

• D.E. (Diatomaceous Earth) Filters: The ultimate in water clarity, filtering out the smallest microscopic particles for a “polished” water look.

Engineered for the Canadian Climate

Our inground filters are sourced from industry leaders like Hayward, Pentair, and Carvin. These brands are specifically chosen for their reinforced, UV-resistant tanks that can withstand the freeze-thaw cycles of Canadian winters. When paired with the right winterizing accessories, these filters provide reliable performance for decades.

How to Size Your Inground Filter

A common mistake is undersizing the filter. For an inground pool, your filter should be able to turn over the entire volume of pool water at least once every 8 hours.

• Small Inground Pools (up to 40,000L): Require a 21″ sand filter or a 150-200 sq. ft. cartridge filter.

• Large Family Pools (80,000L+): Need a 30″ sand filter or a 400+ sq. ft. multi-element cartridge system.

FAQ

• How long does an inground pool filter last? A well-maintained tank can last 10–25 years, while the internal media (sand or cartridges) should be replaced every 2–5 years.

• Can I switch from sand to cartridge? Yes, but it usually requires some minor plumbing adjustments to bypass the backwash line. Our expert team can guide you through the transition.

• What size sand filter is best for an inground pool? Most inground pools require at least a 24-inch or 30-inch tank to ensure proper turnover rates.