Hot Tub Filtration System – Clean Water and Easy Maintenance

£1,071

This sand-filtration system for hot tubs includes a 220–240 V pump with a stated flow of 2,000–4,000 litres/hour, a six-way valve, 1.5 m of Ø32 mm hose, stainless-steel connections, valves and clamps, and a wooden enclosure. Sand is not included, and the pump model may vary with stock.

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No customer project is linked to this exact model yet, so these projects show other models from the same category. Each card names the model reviewed.

Customer projects for this model from the United Kingdom and other countries.

Customer project: Gabrielle — Herefordshire, United Kingdom

Gabrielle — Herefordshire, United Kingdom

TimberIN Nordic External™ – External Wood-Fired Hot Tub Heater

Dear Albertas, All fitted and working a treat!!! Thank you so SO much for all your help and of course for the superb heater. My partner is an artist blacksmith and has made the hot tub, he is so pleased with the great quality of your heater. We have another tub that will need an integral heater, later in the year, there will not be a mad hurry for that one, I promise!!!! I will contact you prior to us ordering. Kindest Gabbie & Ricky

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Customer project: Mairtin — Galway, Ireland

Mairtin — Galway, Ireland

TimberIN Nordic External™ – External Wood-Fired Hot Tub Heater

Hi Albert I have installed the stove. It works brilliantly. As you can see from the photo there is a lot of work still to do. I have to build a timber deck and clad the tub with wood. Best of luck With Timberin in 2017 Regards Mairtin in West of Ireland

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SKU: filter. Category:

Product Description

Sand filtration: remove particles and establish a water-care routine

A hot tub that keeps its water between sessions needs circulation and filtration. This system passes water through sand media to trap suspended particles. It does not replace water balancing or disinfection, but it reduces visible contamination and makes maintenance more predictable.

Documented detailValuePractical effect
Stated flow2,000–4,000 litres/hourCompare with tub volume and circuit losses
Electrical supply220–240 V ACA protected connection suitable for the wet environment
ValveSix ways / six modesFiltration, backwashing and maintenance operations
Supplied hose1,500 mm, Ø32 mm, transparent and heat-resistantVisible connection between components
Stainless-steel connections2 × 250 mm, Ø33 mm, two couplers and two clampsA coordinated connection set

What is supplied?

The package includes the sand-filter vessel and six-way valve, circulation pump, hose, two stainless-steel connections, two couplers, two clamps, two two-position valves and a wooden box. Sand is not included. A UV filter is also not included: it is a separate accessory installed in line with the sand filtration.

The exact pump model may vary with stock. Confirm the reference, flow and supplied instructions in the quotation.

Size the circulation for the actual tub

Actual flow falls as hose length, bends, height differences and media loading increase. Base the filtration duration on the actual water volume and required turnover. A large or heavily used tub needs a different routine from a small tub emptied frequently.

The valves allow equipment isolation and filter cleaning. The wooden enclosure screens the equipment and must remain ventilated, able to drain and accessible for maintenance.

Water quality and winter preparation

Mechanical filtration works alongside water-parameter checks, compatible disinfection and water replacement. When the optional UV filter is fitted, the documented routine calls for it to run with the sand filter for at least three to four hours a day; determine the full daily schedule for the actual tub and use. UV does not replace mechanical filtration. Clean the filter according to pressure and its instructions.

If freezing is possible, remove the filter, drain the water inside and store it under cover. The circulation pump and other vulnerable circuit components also need to be dismantled and drained.

Why choose this system?

This package suits owners who want to retain water for several sessions, remove particles and use a multi-function valve for maintenance. It is particularly useful with a cover and a written water-care routine.

Before ordering, confirm tub volume, required filter media, enclosure position, electrical supply and exact connections.

Compare flow with your tub volume

The stated 2,000–4,000 litres/hour is a starting point. Media, hoses and bends reduce the working flow, so confirm the actual volume and intended installation when setting the daily run time.

Filtration is especially useful when water stays in the tub across several sessions. For a tub emptied after every use, weigh the benefit against enclosure space, electricity, media cleaning and winter preparation.