Quick Answer: How Do You Choose a Suction-Side Pool Cleaner?

Choose a suction-side pool cleaner based on your pool's size, shape, surface, available suction and typical debris. Check that your circulation pump can provide the cleaner's required flow, that the included hose can reach the entire pool and that replacement parts are readily available.

Suction-side cleaners use the existing pool pump rather than a separate electric motor or booster pump. They can provide routine automatic cleaning, but their performance depends on the circulation system, proper setup and the type of debris entering the pool.

Suction-Side Pool Cleaners at a Glance

How Does a Suction-Side Pool Cleaner Work?

A suction-side cleaner connects to the suction side of the pool's circulation system, typically through a skimmer or dedicated suction line.

The pool pump pulls water through the cleaner, creating the suction and movement needed to collect debris.

Collected material normally travels through the pool plumbing and into the pump basket or main pool filter unless an accessory leaf canister is installed.

For a deeper explanation, see How Do Suction-Side Pool Cleaners Work?.

Suction-Side vs. Robotic vs. Pressure-Side Cleaners

Suction-side cleaners are one of three major types of automatic pool cleaners.

See our Robotic vs. Suction vs. Pressure Pool Cleaners comparison before choosing a cleaner type.

Start With Pool Compatibility

Do not assume every suction cleaner works equally well in every pool.

Manufacturers may specify compatibility with particular pool surfaces, shapes, plumbing configurations and sizes.

For example, Hayward's PoolCleaner family includes two-wheel and four-wheel configurations intended for different pool dimensions.

Check the manufacturer's specifications for the exact model rather than relying on the cleaner family's general reputation.

Pool Shape Matters

Navigation becomes more challenging as pool geometry becomes more complex.

Consider features such as:

• Tight corners.
• Curved walls.
• Steps.
• Benches.
• Baja shelves.
• Sharp floor transitions.
• Main drains.
• Raised drain covers.

No automatic cleaner should be assumed to reach every shelf, step or unusual feature.

Example: A Pool With Steps and a Baja Shelf

Consider a pool with a rectangular swimming area, several entry steps and a shallow Baja shelf.

A suction-side cleaner may cover much of the main pool floor but may not consistently climb onto the shelf or clean every step.

Check the manufacturer's depth and navigation requirements. Plan for occasional manual brushing or vacuuming of areas the cleaner cannot reliably reach.

Two-Wheel vs. Four-Wheel Suction Cleaners

Some wheeled suction-cleaner families offer different configurations based on pool size.

Hayward's PoolCleaner platform is one example. Its two-wheel and four-wheel configurations use a similar turbine-style approach but are intended for different pool sizes.

Depending on the model, a larger configuration may include additional hose length and travel capability for larger pools.

Compare the exact model's stated pool-size range, included hose and surface compatibility.

Navigation Design Is Important

A cleaner can have adequate suction and still perform poorly if it repeatedly becomes trapped or follows the same route.

Manufacturers use different mechanical approaches to vary cleaner movement.

Hayward's PoolCleaner, for example, uses a programmed steering mechanism. Zodiac's MX-series cleaners use track-driven movement and directional-control systems.

The goal is consistent pool coverage rather than movement alone.

Compare Common Suction-Cleaner Designs

These are general design categories. Actual movement, navigation and maintenance requirements vary by model.

Hose Length Must Match the Pool

The cleaner needs enough hose to reach the farthest point in the pool from its suction connection.

Too little hose prevents complete coverage. Excessive or incorrectly assembled hose can also affect cleaner movement.

Follow the manufacturer's hose-sizing instructions rather than adding sections indefinitely.

Example: Checking Hose Reach

Suppose the cleaner connects through a skimmer near one end of a rectangular pool.

Measure the distance from the suction connection to the farthest point the cleaner must reach. Then use the manufacturer's instructions to determine the required number of hose sections and any additional allowance.

Also check the recommended hose arrangement and whether the cleaner requires particular floats, weights or connection components.

Suction and Water Flow Matter

A suction cleaner depends on water moving through it.

Too little suction can result in slow movement or no movement at all. Excessive suction can also create performance problems and may cause the cleaner to move too aggressively or remain stuck against a surface.

Many suction cleaners use a flow regulator, flow gauge, valve or similar adjustment system to establish the appropriate operating range.

Use the manufacturer's setup procedure instead of adjusting suction solely by observing cleaner speed.

Variable-Speed Pump Compatibility

Variable-speed pumps can work with suction-side cleaners, but the pump must operate fast enough to provide the required suction while the cleaner is running.

This does not mean the pump must operate at maximum RPM.

The goal is to determine the lowest pump speed that provides reliable cleaner movement while maintaining adequate circulation and meeting the requirements of other connected equipment.

See What RPM Should I Run My Variable-Speed Pool Pump? for more information about choosing operating speeds.

Example: Programming a Cleaning Schedule

Imagine a variable-speed pump that normally runs at a lower speed for filtration but requires a higher speed to operate the suction cleaner reliably.

The owner could program a separate cleaning period using the pump speed established during the cleaner's manufacturer-recommended setup procedure.

After cleaning, the pump could return to its normal filtration schedule.

The actual RPM and runtime depend on the pump, plumbing, cleaner and pool requirements.

Suction Cleaners Use the Main Pool Filter

Unlike robotic cleaners, most suction-side cleaners do not carry a separate fine-debris filtration system.

Debris travels through the suction plumbing toward the pump basket and pool filter.

This is straightforward, but it also means cleaner debris contributes to the load on the pool's primary filtration system.

Consider the Type of Debris in Your Pool

Suction-side cleaners can work well for routine dirt and smaller debris, but debris conditions vary significantly between properties.

A pool surrounded by large trees may routinely receive leaves, seed pods, twigs and other material that is more challenging than fine dirt.

Before choosing a cleaner, consider what actually falls into your pool throughout the year.

When Is a Leaf Canister Useful?

An inline leaf canister can capture larger debris before it reaches the pump basket.

This can be particularly useful when a suction cleaner routinely collects leaves.

The canister still needs to be emptied, but it can reduce the amount of large debris traveling through the suction plumbing and accumulating in the pump basket.

Check compatibility with the cleaner and follow the manufacturer's installation instructions.

Pool Surface Compatibility

Check whether the cleaner is recommended for your pool's finish.

Common surfaces include:

• Plaster.
• Pebble finishes.
• Tile.
• Fiberglass.
• Vinyl.

Manufacturers may offer different shoes, wings, tires or other components for particular surfaces.

Verify that the exact cleaner configuration is suitable for your pool.

Wall Climbing

Some suction cleaners can climb pool walls when flow, pool geometry and cleaner setup allow it.

However, wall climbing should not automatically be interpreted as waterline cleaning. Performance can vary with wall angle, surface condition, suction and pool shape.

If comprehensive wall and waterline scrubbing is a priority, compare suction cleaners with robotic alternatives before buying.

Steps and Baja Shelves

Steps and shallow shelves can be difficult for many automatic cleaners.

A cleaner that works well on the floor and walls may still leave these areas for manual brushing or vacuuming.

Do not choose a cleaner based on the assumption that it will automatically clean every horizontal surface in a complex pool.

Moving Parts Affect Maintenance

Suction cleaners range from relatively simple designs with few moving parts to more complex wheeled or tracked systems.

Components that may eventually require inspection or replacement include:

• Tires.
• Tracks.
• Wings.
• Shoes.
• Turbines.
• Gears.
• Diaphragms.
• Hose sections.

Replacement-parts availability can be more important over several years than a small difference in initial purchase price.

Common Suction-Side Cleaner Problems

Turn off the pump and follow the manufacturer's instructions before disconnecting hoses or opening equipment.

See Why Is My Pool Cleaner Not Moving? for additional troubleshooting steps.

Do Suction Cleaners Increase Pump Energy Use?

A suction cleaner does not have a separate electric motor, but it relies on the circulation pump for power.

If the pool pump must run at a higher speed or for additional hours specifically to operate the cleaner, that additional pump operation contributes to cleaning cost.

Example: Estimating Additional Pump Electricity

Suppose the pump draws an additional 400 watts during a two-hour daily cleaning period compared with its normal filtration setting.

At an electricity rate of $0.18 per kWh:

Additional Daily Cost = (400 ÷ 1,000) × 2 × $0.18 = $0.144

This hypothetical example illustrates the effect of increased pump power during cleaning. It is not a measured result for a particular pump or cleaner.

Advantages of Suction-Side Pool Cleaners

• Relatively simple designs are available.
• No separate electrical power supply at the pool deck.
• No rechargeable battery.
• No booster pump required for most installations.
• Wide availability of established models.
• Potentially lower initial cost than premium robotic cleaners.

Potential Disadvantages

• Dependence on pool-pump flow.
• Collected debris contributes to the main filtration system's workload.
• Large debris can be challenging.
• Hose management is required.
• Variable-speed pump settings may need adjustment.
• Complex pool features may still require manual cleaning.

Popular Suction-Side Cleaner Designs

Major pool-equipment manufacturers offer several approaches to suction cleaning.

Hayward's PoolCleaner family includes wheeled configurations, while Zodiac offers tracked MX-series designs and other suction cleaners.

Rather than choosing by brand alone, compare the exact cleaner's pool-size recommendation, surface compatibility, navigation system, required flow, hose package and replacement parts.

Compare Suction-Side Pool Cleaners on Amazon

Suction-Side Pool Cleaner Buying Checklist

• Recommended pool size.
• Pool-shape compatibility.
• Surface compatibility.
• Wheel, track or diaphragm design.
• Navigation system.
• Wall-climbing capability.
• Required suction or flow.
• Variable-speed pump compatibility.
• Included hose length.
• Large-debris handling.
• Leaf-canister compatibility.
• Replacement-parts availability.
• Warranty.

Frequently Asked Questions

Do suction-side pool cleaners need a booster pump?

No. Suction-side cleaners use the pool's existing circulation pump rather than a separate booster pump.

Can I use a suction cleaner with a variable-speed pump?

Yes, when the cleaner and pump are compatible. The pump must operate at a speed that provides the cleaner's required suction while meeting the needs of the circulation system.

Do suction-side cleaners work on pool walls?

Some models can climb walls, depending on cleaner design, suction, surface condition and pool geometry. Check the manufacturer's stated capabilities for the exact model.

Will a suction cleaner pick up large leaves?

Some models can collect leaves, but large or heavy debris may block the intake or fill the pump basket. An inline leaf canister may help when compatible with the cleaner.

Can a suction cleaner damage my pool surface?

Use only cleaners and contact components approved for your pool's finish. Incorrect components, excessive suction or improper setup may cause operating problems.

Why does my suction cleaner stop moving?

Common causes include insufficient suction, a dirty filter, a full pump basket, blocked cleaner passages, air entering the suction line or worn drive components.

How much hose does a suction cleaner need?

The hose must be long enough to reach the farthest required cleaning point from the suction connection. Follow the manufacturer's sizing procedure for the exact model and pool.

Are suction-side cleaners suitable for pools with Baja shelves?

They may clean the main pool effectively, but shallow shelves and steps can be difficult to reach. Check the cleaner's depth and navigation requirements and expect some manual cleaning where necessary.

Bottom Line

A suction-side pool cleaner should match your pool's size, shape, surface, plumbing, pump and typical debris.

Start by confirming pool compatibility and required hose length. Then compare navigation, suction requirements, variable-speed pump operation, debris handling, wall climbing, replacement parts and warranty.

A properly matched suction cleaner can provide automatic cleaning without a separate motor or booster pump, but the pool's circulation system remains an important part of how well it performs.