Filtry do basenu i jacuzzi – piaskowe, do pompy, Bestway i Intex

Why is water filtration crucial in pools and jacuzzis?

Clean water is the foundation of safe bathing. Without an efficient filter, pools can develop algae, bacteria, and unpleasant odors. A pool without a filter quickly loses clarity, necessitating costly chemical shocks. Regular maintenance of clean water provides three measurable benefits:

• Better water quality – no cloudiness, neutral smell, reduced risk of skin and eye irritation.

• Lower pump and fixture consumption – clean water means no sand in seals and impellers.

• Savings on chemicals – filtration takes on much of the work, so you'll use less chlorine and pH correctors.

Tip: Try to ensure that the entire volume of your pool passes through the filter at least twice a day – this is the simplest way to achieve ideal clarity.

Types of pool filters and their applications

Different pools – different needs. Below we describe the most popular filtration systems for pools and spas along with practical recommendations.

Sand filters for pools and jacuzzis

A sand filter for a pool passes water through a bed of sand or filter glass. As a result, sand filters for pools trap algae, pollen, and cosmetic residues, and you usually flush out the dirt using a 6-way valve. A sand filter for a jacuzzi guarantees low operating costs and high water cleanliness even with intensive use.

• Advantages: easy operation, long-lasting media (2–3 years), self-cleaning through backwashing.

• Disadvantages: larger tank, need for wastewater drainage during backwashing.

Typical designations can be found as sand pool filter 4 m³/h, 6 m³/h, or 10 m³/h – always choose a set that matches the actual flow of your pool pump.

Cartridge filters – types A, B, C, I, II, III

A cartridge filter is a pleated paper enclosed in a plastic basket. The letter symbol indicates the dimensions, and thus the flow rate:

• Type A pool filters – the smallest, for pools with a capacity of up to 5 m³. Type A filter for Intex pools fits the Easy-Set series and has a flow rate of about 1 m³/h.

• Type II filter for Bestway/Intex pool pump – a golden mean for pools 8–12 m³.

• Type III filter for frame pools – larger filtration area, servicing tanks 15–20 m³.

Rinse the cartridge under running water every 3–5 days. When the paper turns gray or the pressure drops – replace it (usually every 2–4 weeks).

Diatomaceous earth filters for pools

The diatomaceous earth media captures particles down to 3 µm – it’s a “laboratory” in your garden. It requires gentle handling but rewards you with water clarity like a mountain lake. Recommended for premium pools where perfect clarity matters.

Bucket filters

A compact bucket filter for pools is suitable for inflatable spas and small children's pools. Installation takes just a few minutes – simply hang it over the edge and connect the hose. Replacing the cartridge costs a few dozen zlotys, making it an ideal “vacation” solution.

Hybrid solutions: pump + sand or cartridge filter

Ready-made pumps with filters for pools combine the pump body and filter tank in one housing. You buy the set once and just connect the hoses – no fuss with adapters. Match the performance to the capacity:

• Filter and pump for pools smaller than 10 m³ – cartridge filter, flow rate 1–2 m³/h.

• Pool pump with sand filter – pool tanks 10–30 m³, flow rate 4–6 m³/h.

• Sand pump for Olympic pool – high flow rates >10 m³/h, with the possibility of automatic salt chlorination.

Water filtration at the inlet – water softeners and iron removers

Hard or iron-laden water from wells can damage liners and cover the entire pool with a rusty deposit. A water softener with ion-exchange resin removes scale, while an iron remover captures rust and iron (often resulting in yellow water). Both devices can be connected for the whole house or just for the garden hose.

Good to know: Softened water requires less chlorine because scale does not deactivate active chlorine.

Filters dedicated to popular brands

When buying an original, you are assured of compatibility, but often a replacement offers the same effectiveness at a lower price. We offer both options.

Bestway – cartridges, sand filters, pumps with filters

Bestway is an international brand with over 25 years of experience, known for affordable inflatable and frame pools. It also offers dedicated pumps and filters designed to work perfectly with its pools and jacuzzis. This ensures compatibility and easy installation.

• Bestway pool filter type II – replacement every 2 weeks or after 10 backwashing cycles.

• Bestway sand filter for pools – set with a 6-way valve, pressure gauge, and hoses.

• Bestway jacuzzi filter – cartridge VI, finer paper captures oils from cosmetics (e.g., from tanning, SPF).

Intex – cartridges A/II/III, sand filters, and pump sets

Intex is an American brand with over 50 years of experience, known for durable frame pools and a wide range of compatible accessories. Users appreciate Intex pools and filters for their reliability. The most common matches:

• Intex pool filters A – Easy-Set series with a diameter of up to 366 cm.

• Type A filter for Intex pool works with a pump of 1.25 m³/h – replacement every 2 weeks.

• Cartridges II (for 2.7 m³/h pumps) and III (for 3.8 m³/h pumps) for larger frames.

Lay-Z-Spa – filters for pools and jacuzzis

Lay-Z-Spa is a mobile jacuzzi brand from Bestway with a capacity of 600–1400 l, equipped with an AirJet or HydroJet massage system. Water circulates almost around the clock, so the filter must be efficient and easy to replace.

• Type VI cartridge (⌀ 104 mm × 80 mm) – fits all models; replace every 4–7 days or when the water loses clarity.

• VI cartridge with antibacterial fabric – slows down algae growth and extends the filter's lifespan by a few days.

• Block pump-heater 2 kW + filter – one panel controls temperature, massage, and water circulation; just set it to “Filter” mode.

Universal replacements and compatibility with other brands

Before adding a replacement to your cart:

1. Measure the outer diameter and height of the cartridge.

2. Count the grooves of the thread (for screw-on cups).

3. Compare the declared flow rate with the pump's power.

Most replacements are compatible, but it's worth asking our technical department before purchasing.

How to choose the right filter for your garden pool or jacuzzi

Quick checklist – choose a filter in 6 steps:

1. Pool volume (l or m³) – check in the manual or multiply length × width × depth.

2. Minimum pump flow – the pump should filter all the water 2–3 times a day (volume ÷ 4 h = l/h).

3. Access to drainage – sand filters require “Backwash,” cartridge filters only require cartridge replacement.

4. Bathing style – lots of foam and cosmetics? Choose an antibacterial cartridge or sand + coagulant.

5. Frequency of use – daily baths = greater investment or faster pump.

6. Budget and service – sand is cheaper in the long run, the cartridge is replaced quickly, diatomaceous gives crystal clarity but costs more.

Comparison table of the most popular filters

Operation and maintenance of filters

Frequency of cartridge and sand replacement

• Sand filter for pump – replace the medium every 2–3 years or when the water takes longer to clarify.

• Replacement of cartridge filter – every 2–4 weeks; rinse more often during heatwaves.

Cleaning, backwashing, winterizing the system

1. Turn off the pool filter pump and close the valves.

2. Set the valve to “Backwash”, run the pump for 2 minutes – dirt will flow into the sewage.

3. Switch to "Rinse" for 30 seconds to settle the medium.

4. In winter, drain the filter and pump of water and disconnect the connections to avoid cracks.

Troubleshooting common filtration issues

• Cloudy water: too infrequent backwashing or low chlorine level – increase the frequency of backwashes or perform a shock treatment.

• Poor flow: clogged cartridge or sandy pipes – backwash the line.

• Foam on the surface: excess sunscreen products – use a coagulant and vacuum the bottom.

• Yellow water in the pool: read the guide "Yellow water in the pool - how to remove brown water from the pool?"

• Green water in the pool: read the guide "Green water in the pool - causes, what to do, removal"

Frequently Asked Questions (FAQ)

1. Can a pool operate without a filter? - Theoretically yes, practically the water will turn cloudy within 24 hours, and you will use twice as much chlorine.

2. Which filter to choose for a jacuzzi? - Cartridge for easy, frequent replacement; sand for daily, multi-hour use.

3. What filters water best in a pool? - Diatomaceous will even trap pollen and Sahara dust, but requires more careful maintenance.

4. How many hours a day should I filter pool water? - At least 4–6 hours, during heat and multiple daily swims increase to 8–10 hours.

5. Which pool filter is the easiest to clean? - Cartridge – you remove the cartridge, rinse it with a garden hose, and it's done.

6. Can I use substitutes for filter cartridges? - Yes, as long as the dimensions and flow match the pump manufacturer's specifications.

Check the full range of pool and jacuzzi filters in our store

Browse all models and choose the perfect set for your garden. With our solutions, filtering pool water will be as easy as pouring another glass of lemonade – and you will spend the summer in crystal clear, inviting water!