Section

Pool Components

How does a swimming pool system work? Guides on filter pumps, sand filters, pool covers and heating for residential pool owners in the Netherlands and Europe.

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Start with the step-by-step plan, the rest follows per section.

See the step-by-step plan

Below you will find all articles about the technical components of your swimming pool. They are arranged in the order water flows through the system: from the point where water leaves the pool to where it returns clean.

Overview: follow the water through your pool

  1. How does a pool work? The complete system : beginner’s guide and overview of all systems
  2. Pool skimmer: drawing in surface water : operation, types and placement
  3. Main drain: circulation from the bottom : function, safety and installation
  4. Filter pump: the heart of circulation : technical operation and sizing
  5. Sand filter: filtering debris from the water : multiport valve, filter media and pressure
  6. Return jets: clean water back into the pool : alignment and circulation pattern
  7. Heat pump: warming the pool : COP, sizing and placement
  8. Saltwater chlorinator: automatic disinfection : electrolysis, maintenance and myths
  9. Pool plumbing and hydraulics : PVC diameters, bypasses and resistance
  10. Pool vacuum: cleaning floor and walls : manual, automatic and robotic

Buying guides and comparisons

All articles on components

Components 9 min read Nov 2, 2026

Automatic pH and Chlorine Control for Pools: What Pool Owners Need to Know

Automatic pH and chlorine control for pools: how sensors and dosing pumps work, safety features, remote access, and what the complete system costs.

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Components 9 min read Nov 2, 2026

Salt Electrolysis Pool: Complete Guide to Saltwater Treatment

Salt electrolysis pool: how the cell works, what salt level you need, pH effects, maintenance, and cost comparison with chlorine tablets.

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Components 6 min read Nov 2, 2026

Pool Liner Guide: Choosing, Replacing and Maintaining Your Liner

Everything about pool liners: which type fits your pool, what thickness you need, how long a liner lasts and what replacement costs to expect.

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Components 6 min read Nov 2, 2026

Pool Tiles: Choosing, Installing and Maintaining Tiles For Your Pool

Which tiles work in and around a swimming pool? A guide to materials, slip resistance ratings, frost resistance, costs and maintenance advice.

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Components 7 min read Nov 2, 2026

How to heat a pool: heat pump, solar, or wood heater?

Pool heating options compared: heat pump (COP 5), solar mats, wood-fired heater, and electric resistance. Running costs, heating speed, and which โ€ฆ

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Components 5 min read Nov 2, 2026

Pool enclosure: types, costs, and benefits

Buying a pool enclosure? Compare low telescopic (โ‚ฌ2,000) to high walk-in enclosures (โ‚ฌ25,000+). Prices, materials, permit requirements, and season โ€ฆ

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Components 17 min read Oct 27, 2026

Pool circulation pump (filter pump): how it works, sizing and choosing

Choosing a pool circulation pump or filter pump? Learn how the impeller, volute and motor work together, calculate the right flow rate for your pool, โ€ฆ

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Components 12 min read Oct 27, 2026

Pool heat pump: how it works, COP, inverter vs on/off, and sizing

A pool heat pump extracts warmth from outdoor air and transfers it to pool water through a refrigerant cycle. Learn how COP works, the difference โ€ฆ

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Components 8 min read Oct 27, 2026

Sand filter vs cartridge filter: which is right for your pool?

Sand filter or cartridge filter? For pools over 20,000 litres a sand filter wins on long-term cost. Compare filtration quality, maintenance and 5-year โ€ฆ

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Components 9 min read Oct 26, 2026

How to Choose a Pool Cover: Solar, Winter or Safety Cover?

Pool cover buying guide: compare solar covers, winter tarps and safety covers on heat retention, cost and ease of use for residential pools.

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Components 9 min read Oct 26, 2026

How does a pool sand filter work? Technology, multiport valve and filter media

A sand filter traps debris in a layer of quartz sand or glass media as water flows top-to-bottom through a pressure vessel. Learn how the multiport โ€ฆ

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Components 8 min read Oct 26, 2026

Pool Plumbing Explained: PVC Diameters, Gluing and Basic Hydraulics

Pool plumbing connects your pump, filter, heater and return jets. Learn which PVC diameter to use, how to glue versus thread connections, and how to โ€ฆ

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Components 10 min read Oct 26, 2026

Pool skimmer: how it works and which type to choose

A pool skimmer draws in surface water and captures floating debris before it sinks. Learn how a skimmer works, its parts (basket, weir, mouth), and โ€ฆ

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Components 9 min read Oct 26, 2026

Pool Vacuum Explained: Manual, Automatic or Robotic? How to Choose

A pool vacuum removes dirt from the floor and walls of your pool. Discover the difference between manual vacuums, suction cleaners and robotic pool โ€ฆ

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Components 8 min read Oct 26, 2026

Saltwater Chlorinator: How Electrolysis Works and What It Means for Your Pool

A saltwater chlorinator produces chlorine from dissolved salt through electrolysis. Learn how the system works, the required salt level, pros and โ€ฆ

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Components 9 min read Oct 26, 2026

How does a swimming pool work? The complete system from A to Z

A pool works as a closed loop: skimmer and main drain draw water in, the pump pushes it through the filter, and return jets send it back clean. Here โ€ฆ

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Components 7 min read May 26, 2026

Pool main drain: function, safety and circulation

The main drain draws water from the deepest point of your pool for full circulation. How it works, why dual drains are safer, and what to do without โ€ฆ

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Components 7 min read May 26, 2026

Pool return jets: function, setup, and optimal circulation

Return jets send filtered water back into your pool and determine circulation patterns. Learn how many you need, how to aim them for maximum flow, and โ€ฆ

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