Hayward S270T ProSeries Sand Filter 27-In Top-Mount - Efficient Flow

In this review the Hayward S270T ProSeries Sand Filter is assessed as a practical, mid-size top-mount filter for in-ground pools up to about 20,000 gallons; the single biggest reason to buy it is its combination of simple assembly and efficient, low-energy operation. The reviewer found the 27-in tank and 1.5-in vari-flo valve deliver solid water clarity while the molded thermoplastic base promises durable, all-weather service. Installation notes and customer feedback suggest a licensed pool professional should be consulted for setup, but for an owner comfortable with standard pool plumbing this filter offers reliable performance and straightforward maintenance.

Key Features

• Top-mount vari-flo valve: The 1.5-in 7-position valve lets the owner balance flow and backwash cycles for efficient filtration with minimal head loss.
• Integral top diffuser: The diffuser spreads unfiltered water evenly over the sand bed so every inch of media contributes to cleaner water.
• Self-cleaning under drain: 360-degree slotted laterals provide balanced flow during normal filtration and thorough clearing during backwash.
• Rugged thermoplastic base: A molded base resists weathering and reduces the chance of cracking or wear over time compared with less durable materials.
• Performance-matched components: The filter and valve are matched to maintain maximum flow and energy efficiency, helping shorten run times.

Who It's For

The S270T is aimed at pool owners with an in-ground pool around 20,000 gallons or less who want a dependable sand filter that is straightforward to assemble and operate. Someone who values low operating pressure, easy backwashing, and long-lasting filter construction will find this model a good fit.

Owners who need a plug-and-play turnkey install or who lack basic plumbing experience should consider hiring a licensed pool professional for setup, as recommended by the manufacturer. Buyers needing cartridge filtration or very compact equipment for tight spaces should look at alternative filter types.

Pros & Cons

Pros

• Effective sand filtration yields noticeably clearer water when run and backwashed properly.
• Top-mounted 7-position vari-flo valve gives flexible control over flow and efficient backwash cycles.
• Durable thermoplastic base and matched components reduce maintenance and energy use over time.

Cons

• Some customers report mixed build quality and occasional leakage, so careful inspection at install is advisable.
• Requires about 350 lb of sand and a professional for optimal installation if the owner is not experienced.

Specifications

Our Verdict

The Hayward S270T ProSeries 27-in top-mount sand filter is a sensible choice for in-ground pool owners seeking durable construction, flexible valve control, and energy-conscious operation. With correct installation and the recommended sand load it delivers clear water and efficient backwashing, making it good value for those prepared to handle or arrange professional installation.

Frequently Asked Questions

How much sand does this filter need?
About 350 lb of pool filter sand is required for proper operation.

Is a professional install required?
The manufacturer recommends consulting a licensed pool professional to assist with installation, especially if you lack plumbing experience.

Will it reduce energy costs?
Yes, the ProSeries full-flow design and matched components aim to reduce run time and lower energy use compared with less efficient filters.