Bestway Pool Filter Cleaning: A Complete Guide for Clean Water

Swimming pool Bestway is not only a source of summer pleasure, but also an object that requires regular care. One of the key procedures is washing the filter, which directly affects water quality, equipment life and your health. A clogged filter no longer effectively traps dirt, which leads to cloudy water, bacterial growth and increased load on the pump. In this article we will look at how to properly wash different types of filters, what products to use and what mistakes can shorten the life of your pool.

Many pool owners make the same mistake: they clean the filter only when the water has already become cloudy or the pump begins to work intermittently. In fact, preventative flushing should be carried out much more often - depending on the intensity of use of the pool and the type of filter element. For example, cartridge filters require weekly maintenance, while sand filters require washing every 1–2 weeks. We will go into detail about each stage of the process so that you can keep your pool in perfect condition without unnecessary costs for chemicals and repairs.

Bestway filter types and their features

Company Bestway equips its pools with three main types of filters, each of which has its own cleaning nuances:

• 🔄 Cartridge filters - the most common in inflatable and frame pools. They consist of corrugated material that traps particles up to 10–20 microns in size. Easily removed and washed under running water.
• ⏳ Sand filters - used in larger models (for example, Bestway Steel Pro). Filtration occurs through a layer of quartz sand. They require backwashing and periodic replacement of sand (every 2-3 seasons).
• 🧲 Diatom (earth) filters - rarely found in domestic pools Bestway, but provide the finest cleaning (up to 1–5 microns). Wash with special solutions.

It is important to understand that The type of filter determines not only the cleaning method, but also the frequency of the procedure. For example, a cartridge in a pool with a volume of 3–5 m³, which is used daily by a family of 4 people, will require flushing every 3–4 days. At the same time, a sand filter for a 10 m³ pool can be cleaned once every 10–14 days with moderate load.

How to determine which filter is installed in your pool? Usually the information is indicated in the instructions for the model. If documentation is lost, please note:

• 📦 Filter element shape: cylindrical cartridge, sand barrel or disk unit.
• 🔧 Connection: Cartridge filters are often attached with latches, sand filters - through couplings.
• 💧 Water pressure: when the cartridge is clogged, the jet from the nozzles weakens, and the sand filter begins to “spit” dirt during backwashing.

When and how often to rinse your pool filter

The frequency of flushing depends on three key factors:

1. Pool usage intensity — the more people swim, the faster the filter clogs. For example, a children's pool in the country, which is used on weekends, can be cleaned once a week, and a home pool for daily training - every 2-3 days.
2. Water volume — in small pools (up to 3 m³), water circulates faster, and the filter clogs more intensively than in large pools (10 m³ or more).
3. External conditions — if the pool is located under trees or in a dusty place, the filter will collect leaves and dirt much more actively.

General recommendations for flushing frequency:

Filter type	Pool volume	Intensity of use	Recommended flushing frequency
Cartridge	Up to 5 m³	Daily	Every 2–3 days
Cartridge	5–10 m³	2–3 times a week	Once every 5–7 days
Sandy	More than 10 m³	Daily	Once every 7–10 days
Sandy	Up to 5 m³	Rare (on weekends)	Once every 2 weeks

How to understand that the filter requires urgent cleaning? Look out for the following signs:

• 🌊 Reduced water pressure in the pool nozzles.
• 🔍 Cloudy water, even if the chemical composition (chlorine, pH) is normal.
• 💨 The pump is louder than usual or overheats.
• 🧹 More dirt accumulates at the bottom of the poolthan usual.

⚠️ Attention: If after washing the filter the water in the pool remains cloudy, the problem may lie in pump malfunction or chemical imbalance. In this case, check the pH level (optimally 7.2–7.6) and chlorine content (1–3 mg/l).

Step-by-step instructions: how to rinse a Bestway cartridge filter

Cartridge filters are the most common in swimming pools. Bestway series Fast Set, Steel Pro and Power Steel. Cleaning them does not require special tools, but it is important to follow the algorithm so as not to damage the filter element.

Disconnect the pump from the 220V network |

Relieve pressure in the system (open the valve or disconnect the hose)|

Prepare a container with warm water (30–40°C)|

Prepare a soft brush or sponge| -->

Step 1. Disconnecting and dismantling the filter

Before starting work unplug the pump from the outlet. Then:

1. Close the shut-off valves at the filter inlet and outlet (if any).
2. Press the filter housing latches (usually 2-4) and remove the top cover.
3. Carefully remove the cartridge by pulling it up. Do not use force - if it does not come out, check to see if it is caught on the o-ring.

Step 2: Pre-cleaning

Remove large debris (leaves, insects) from the surface of the cartridge by hand. Then rinse it under running water with pressure, directing the stream from top to bottom (along the folds). This will help wash away the underlying dirt. Use soft brush or a sponge for cleaning particularly dirty areas. Do not use hard brushes or metal sponges. - they will damage the filter material.

Step 3: Deep Cleaning

To remove fat deposits, limescale and microorganisms, it is recommended to soak the cartridge in the solution:

• 🧼 Soap solution: 1 tbsp. spoon of liquid soap per 10 liters of warm water (soak for 1–2 hours).
• 🍋 Citric acid: 100 g per 10 liters of water (effective against limescale, soak for 30–60 minutes).
• 🧪 Special means: for example, Bestway Filter Cleaner or Intex Cartridge Cleaner (follow package instructions).

After soaking, rinse the cartridge again under running water.

Step 4. Assembly and testing

Make sure the cartridge is completely dry (you can wipe it with a dry cloth). Place it back into the housing, aligning it with the guide grooves. Close the lid and lock the latches. Before turning on the pump check:

• ✅ Tightness of the sealing ring (there should be no distortions).
• ✅ No foreign objects in the filter housing.
• ✅ The hoses are connected correctly (input/output are not mixed up).

Backwashing a sand filter: nuances of the process

Sand filters installed in swimming pools Bestway Steel Pro MAX or Power Steel Frame, require backwash (backwash). This procedure removes accumulated dirt from the sand and restores filtering capacity. Unlike cartridge filters, there is no need to disassemble the housing - just switch the valves.

What you will need:

• 🔧 Hex key (usually included with the pool).
• 💦 Hose for draining dirty water (at least 3 m long).
• ⏱ Timer or stopwatch.

Step-by-step algorithm:

1. Turn off the pump and turn off the water supply to the pool.
2. Turn the handle multi-way valve to position Backwash (backwash). On some models this position is marked as Waste.
3. Connect a drain hose to the filter's drainage hole and lead it down the drain or onto the lawn (the water will be dirty!).
4. Turn on the pump for 2-3 minutes. The water pressure should wash the dirt out of the sand. Monitor the clarity of the water in the drain hose - when it becomes clear, the flushing is complete.
5. Turn off the pump and move the valve to position Rinse (rinse). Turn on the pump for another 1 minute - this will remove any remaining dirt from the system.
6. Return the valve to its original position Filter and start the pool as normal.

After backwashing, check pressure gauge on the filter. If the pressure exceeds the norm (usually 0.5–1 bar), repeat the procedure. High pressure indicates that the sand has not yet been cleaned.

⚠️ Attention: Never use household sand to replace the filter! Only quartz sand fraction 0.4–0.8 mm (for example, Bestway Filter Sand). Regular sand contains clay and impurities that will clog the system.

What should I do if the water remains cloudy after backwashing?

If backwashing does not help, the reasons may be as follows:

1. Contamination of sand with fats or oils (for example, from sunscreens). In this case, chemical cleaning with special means is required, for example, Bestway Sand Filter Cleaner.

2. Sand wear — over time, the particles wear out and lose their filtering properties. Sand needs to be replaced every 2-3 seasons.

3. Pump problems — check its power and tightness of connections.

Filter cleaning products: what you can and cannot use

Choosing the right cleaning agent will prolong the life of the filter and improve the quality of the water. However, many pool owners make mistakes by using aggressive substances that destroy the filter material.

Allowed means:

• 🧼 Liquid soap or dishwashing detergent — Suitable for regular cleaning of cartridges. Does not leave streaks and is safe for materials.
• 🍋 Citric acid (10% solution) — effectively removes limescale, especially relevant for regions with hard water.
• 🧪 Special cleaners: Bestway Filter Cleaner, Intex Cartridge Cleaner, Bayrol Filter Clean. They contain surfactants and antibacterial components that dissolve fatty deposits and biofilm.
• 💧 Acetic acid (9% solution) - an alternative to citric acid, but requires careful rinsing.

Prohibited means:

• ❌ Chlorine bleaches — destroy the fibers of the cartridge and damage the rubber seals.
• ❌ Abrasive powders (for example, Pemolux) - scratch the surface of the filter, reducing its service life.
• ❌ Kerosene, gasoline, solvents - toxic and can get into the pool water.
• ❌ Boiling water — deforms the plastic elements of the cartridge.

For sand filters it is recommended to use special sand cleaners, such as Bestway Sand Filter Cleaner. They dissolve organic deposits and restore filtration capacity without the need to replace the sand.

Common mistakes when washing the filter and how to avoid them

Even experienced pool owners sometimes make mistakes that lead to equipment breakdowns or poor water quality. Here are the most common of them:

1. Washing the filter without turning off the pump. This may lead to damage to the O-rings or burnout of the pump motor due to water entering the electrical part. Always turn off the power before starting work!
2. Using stiff brushes. Metal or rough brushes tear the fibers of the cartridge, which is why it no longer retains small particles. Use only soft sponges or brushes with medium-hard bristles.
3. Insufficient rinsing after chemical cleaning. Detergent residue can get into the pool and cause skin irritation or foam in the water. Rinse the cartridge under running water for at least 5 minutes.
4. Ignoring cartridge replacement. Even with regular cleaning, the cartridge wears out. If it has lost its shape or become brittle, it must be replaced. Average service life is 1–2 seasons.
5. Incorrect backwashing of the sand filter. If you do not wait until the water in the drain hose becomes clear, the dirt will remain in the sand and the filter will quickly clog again.

Another common mistake is washing the filter only when the water has already become cloudy. This leads to:

• 🔋 Increased load on the pump and its premature wear.
• 🦠 Development of bacteria and algae in a clogged filter.
• 💸 Increased consumption of chemical reagents for water.

⚠️ Attention: If after washing the filter the pump begins to hum or vibrate, check pool water level. Low levels may lead to dry running and pump failure. The optimal level is 2/3 of the skimmer height.

How to extend the life of your Bestway pool filter

Following a few simple rules will help you save on filter replacements and equipment repairs:

• 📅 Keep a maintenance log. Write down the dates of flushes, replacement of cartridges or sand. This will help track dynamics and replace worn elements in a timely manner.
• 🌿 Use a pre-filter (if it is provided for by the design). This is a fine mesh that traps large debris (leaves, insects) and reduces the load on the main filter.
• 🧴 Add algaecide into the water. This product prevents the growth of algae, which quickly clogs the filter.
• 🔄 Alternate cleaning methods. For example, once a month, use chemical flushing of the cartridge, even if it appears visually clean.
• ☀️ Keep the filter in the shade. Direct sunlight accelerates the wear of plastic parts and seals.

For sand filters it is especially important:

• 🏖️ Check the sand level — it should cover the filter tubes by 2–3 cm. Top up if necessary.
• 🔧 Lubricate O-rings silicone grease once a season. This will prevent them from cracking.
• ⚖️ Control your blood pressure on the pressure gauge. If it exceeds 1 bar, backwash.

If you use the pool seasonally, before storing it for the winter:

1. Rinse the filter and dry it.
2. Remove the cartridge or drain the sand filter.
3. Store the filter in a dry place at temperatures above 0°C.

FAQ: Frequently asked questions about washing Bestway filters

Can the cartridge be washed in the dishwasher?

No, this is strictly prohibited! High temperatures and aggressive detergents will damage the filter material. The cartridge can only be washed manually with warm water (up to 40°C) and mild detergents.

How long does sand last in a sand filter?

The average service life of quartz sand is 2-3 seasons with regular backwashing. If the sand has turned dark gray or brown, it must be replaced as it has lost its filtering properties. For swimming pools Bestway Sand of fraction 0.4–0.8 mm is suitable.

What is the difference between washing the filter in a Bestway and Intex pool?

There are no fundamental differences, since both brands use similar types of filters (cartridge and sand). However Bestway often equips swimming pools with filters six position valves, and Intex - with four-position. Cartridge sizes may also vary (e.g. Bestway 58388 vs Intex 28607), so check compatibility before purchasing spare parts.

Why did the pool water become cloudy after washing the filter?

This can happen for several reasons:

• Insufficient washing of the sand filter (backwashing must be repeated).
• Air entering the system (check the tightness of the connections).
• Imbalance in water chemistry (check pH and chlorine levels).
• Worn filter material (replace cartridge or sand).

If the turbidity does not disappear within 24 hours, contact the service center.

Can I use a Bestway pool filter to purify my pond water?

Technically it is possible, but it is ineffective. Pool filters are designed to purify water from small particles (sand, dust, organic matter), but cannot cope with silt, mud and large debris, characteristic of ponds. In addition, constant operation in such an environment will quickly damage the filter. For ponds it is better to use specialized pond filters with UV lamp.