Choosing Bestway pool and spa accessories: a practical guide to compatibility and maintenance

Finding the right part for your pool or Lay-Z-Spa might seem straightforward – until a filter doesn’t fit the housing, a hose leaks, or a cover fails to seal the tub properly. When it comes to Bestway pool and spa accessories, the choice isn’t just about price or appearance. Dimensions, model type and how you use it all determine whether an accessory will actually work for you.

The most common purchasing pitfalls are:

• Relying solely on the brand: Bestway parts come with different type numbers. A Bestway filter cartridge isn’t automatically compatible with every Bestway pump.
• Ignoring measurements: A 32 mm hose won’t fit a 38 mm connection. With a spa cover, even a few centimetres’ difference can result in a poor fit.
• Taking marketing claims at face value: According to Bestway’s own research, an EnergySense cover can be up to 40% more energy-efficient. That’s a brand claim, not a guarantee for every garden, temperature or frequency of use. So always check the construction and dimensions too.

The key specifications to check before you order

1. Check the filter type and capacity

A Bestway filter cartridge is identified by a type, such as I, II, III-A/C, IV/B or VI. First, look at the type number on your old cartridge, the pump or the manual. Also pay attention to:

• Filter type: for example, Type I for a pump with a stated flow rate of 1,249 litres per hour.
• Dimensions: a Type IV/B cartridge, for instance, has a diameter of 14.2 cm and a height of 25.4 cm.
• Pump flow rate: the Type III-A/C is designed for pumps with a flow rate of approximately 2,006 to 5,678 litres per hour.
• Connection and model: a Lay-Z-Spa filter Type VI is intended for the Lay-Z-Spa range and measures roughly 107 mm by 79 mm.

A larger filter isn’t automatically a suitable replacement. The shape, opening and filter housing must all match. Always switch off the pump and unplug it before replacing a pool filter or spa filter.

2. Measure hoses and connections

A pool hose must match the diameter of the pump and tub connections. The range includes the following sizes:

• 32 mm (1.25 inches): for cartridge and sand filter pumps with 32 mm connections.
• 38 mm (1.5 inches): for pumps with 38 mm connections.
• Length: both hoses mentioned are 3 metres long.

Also check the hose clamps and the route the hose will take. Kinks can restrict water flow; cracks or poorly tightened clamps can cause leaks. Turn off the filter pump before disconnecting any hose.

3. For covers, look at both diameter and height

A Lay-Z-Spa cover or thermal spa cover must fit not only around the spa but also match the height of the tub. The available EnergySense models differ in size, for example:

• For a round spa approximately 1.80 metres in diameter and 66 cm high.
• For a round spa approximately 2.16 metres in diameter and 71 or 80 cm high.

According to the product description, the covers feature a water-repellent Tritech top layer, double thermal protection and an adjustable Velcro fastening. The claim of up to 40% higher energy efficiency comes from Bestway’s product information and should be taken as an indication. Actual energy savings depend on factors such as outside temperature, wind, water temperature and how often you open the spa.

Please note: a cover is not a seating or walking surface. Remove the cover completely before anyone uses the spa.

Which accessory suits your situation?

Suitable for: Budget-conscious beginners

Bestway Filter Cartridge (I)

Why this fits the profile: For a smaller above-ground pool and a pump with a flow rate of 1,249 litres per hour, this is a straightforward replacement choice.

How this product avoids the pitfall

The type, dimensions of approximately 79 x 91 mm and the compatible pump flow rate are clearly stated. That way, you don’t have to rely on the product photo alone.

Key benefit & highlights

Polyester mesh with a plastic core; rinse with a garden hose. The product information recommends replacement approximately every two weeks, depending on use.

Suitable for: Shoppers seeking top quality

Bestway Lay-Z-Spa EnergySense Thermal Round Spa Cover

Why this fits the profile: Ideal for those who use their spa outdoors regularly and value a sturdy, well-fitting thermal cover.

How this product avoids the pitfall

The specifications state a compatible diameter of 2.16 metres and heights of 71 and 80 cm. That makes measuring beforehand essential and prevents a one-size-fits-all mistake.

Key benefit & highlights

Water-repellent Tritech material, double thermal layer, adjustable edge and a zip opening for the pump connection.

Suitable for: Specific use & heavy users

Bestway Lay-Z-Spa Filter Cartridge (VI)

Why this fits the profile: For Lay-Z-Spa owners who filter regularly and want a spare cartridge on hand for maintenance.

How this product avoids the pitfall

The cartridge is specifically labelled as Type VI for Lay-Z-Spa models. Still, check whether your spa uses this type before ordering.

Key benefit & highlights

Polyester mesh with a plastic core; clean with fresh water. The product information recommends replacing after one to two weeks, depending on use.

Suitable for: Protecting the ground and spa

Bestway Lay-Z-Spa Floor Protector

Why this fits the profile: A practical choice for anyone who wants to place the spa on a clean, level surface and provide extra protection for the floor.

How this product avoids the pitfall

The set consists of interlocking sections and must be laid flat on a clean surface. This makes it clear that it is not a substitute for a suitable foundation.

Key benefit & highlights

PE material, 16 interlocking sections and a total area of approximately 2 m²; multiple sets can be combined.

Maintenance that prevents unnecessary costs

A filter cartridge doesn’t always last the same length of time. Check the filter weekly and rinse it with a garden hose. Do not use detergent or a pressure washer – these can damage the filter material. Replace a cartridge sooner if it is torn, deformed or heavily soiled.

For a pool with a filter pump, also follow these steps:

1. Switch off the pump and unplug it before carrying out any maintenance.
2. Do not let the pump run dry.
3. Check hoses for leaks and kinks.
4. Store the pump and accessories in a frost-free place when the season is over.

For a small leak in an inflatable pool or spa, a pool repair patch can be a handy solution. The waterproof patches are designed for minor damage. Make sure the surface is free of grease and dirt, press the patch firmly into place and allow for the stated curing time. Do not use a patch if the hole is larger than the patch surface.

Frequently asked questions about Bestway pool and spa accessories

How do I know which Bestway filter cartridge I need?

Note the type and model number of your current cartridge or pump. Also measure the diameter, height and opening. Compare these details with the product description. A Type I, II, IV/B or VI is not automatically interchangeable.

How often should I replace a Lay-Z-Spa filter?

That depends on usage, water quality and how dirty it gets. The product information for different cartridges usually suggests one to four weeks as a guideline. Rinse the filter regularly and replace it immediately if it is damaged or no longer comes clean.

Does a thermal spa cover always save energy?

No, the result varies depending on the situation. According to Bestway’s own research, an EnergySense cover can be up to 40% more energy-efficient. Wind, outside temperature, the spa’s insulation, water settings and how you use the cover all affect actual consumption. So always check the size first and use the cover in line with the safety instructions.