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spa tiger hot tub spa biofilm remover and water sanitiser h2ofun

Spa Tiger - Spa & Hot Tub Water Treatment

£495.00 (Was £595.00 )

  • Spa Tiger Kills Contaminants In Two Ways
  • Reduces The Need For Chlorine By Up To 85%
  • Cleans Scale & Biofilm From Your Spa or Hot Tub's Surfaces & Pipework
  • 5 Year Warranty
  • Virtually Eradicates The Need To Adjust pH Levels In Spa Water
  • Clarifies Water By Eliminating Suspended Particles
  • Simplifies Water Balancing
  • Protects Your Hot Tub's Surface From Scale & Staining

DELIVERY: We aim to send all products out on a next working day service but all standard deliveries will be within 5 working days

RETURNS: Spa Tiger can be returned unused, in original packaging, suitable for resale, within 14 days from date of delivery.


What to expect after installing the Spa Tiger

The following is offered as a guide:

  • Hot Tub Water becomes crystal clear
  • Heavy metal particles removed
  • A low, gradually stabilizing pH level
  • Cyanuric acid level begins to gradually decrease
  • Percentage of free available chlorine gradually increases
  • Existing scale begins to disappear 

    The Spa Tiger is a miniaturized version of the Pool Tiger, downsized for easier engineering and retrofitting but powerful enough to easily exceed the sanitation and enhancement standards for spas. The Spa Tiger Purifies, Clarifies & Disinfects your Hot Tub / Spa Water. This reduces Hot Tub Chemical Use By Up To 85%. Easy to install with minimal maintenance, No Electricity Consumption, Prevents Limescale Deposits, Removes Bio-Film & Protects Skin and Hot Tub / Spa Surfaces


    The Spa Tiger was designed to harness an all-natural process known as Hydrodynamic Cavitation. In our device this process relies solely on the flow of water as driven by your Hot Tub's Pump. 

    Constructed of hardy thermoplastic, the Spa Tiger has no moving parts. It does not require electricity nor does it contain any cartridges or other components that will ever require replacement. 


    The effects of cavitation have been known for more than a hundred years, but only recently has this phenomenon been harnessed to provide several important benefits.

    Cavitation in our device occurs when water accelerates within the device’s nozzle. This acceleration drops the pressure of the water below the vapor point, resulting in the formation of small vapor bubbles. As the vapor bubbles exit the nozzle, the pressure of the surrounding water causes them to rapidly collapse and revert to a liquid state once again.

    This rapid change in water’s states of matter creates:
    - High levels of infrared energy (heat )
    - Intensive shock waves

    These factors are sufficient to:
    - Oxidize and destroy exposed contaminants – this improves sanitation and reduces the need for chemical treatment
    - Initiate the gradual decomposition of acids – this raises pH and eliminates excessive levels of cyanuric
    - Change the polarity of suspended particles, causing them to agglomerate to a size at which they are easily captured by the filter – this clarifies water and creates a more inviting swimming environment
    - Affect the bonds between the hydrogen and oxygen atoms which constitute water molecules - this produces a phenomenon known as "structured water"

    It is important to note that the heat produced by cavitation is quickly absorbed by the surrounding water. As such, it does not raise the temperature in the Hot Tub by any measurable degree.


    Most of the water on our planet is composed of small groups of water molecules randomly joined together by means of shared hydrogen atoms. These molecular groups are irregular in size and shape.

    Under certain conditions, however, water molecules can join together in precisely configured groups consisting of sheets of hexagonal cells. Due to their well-defined structure these molecular groups are called “structured water.”

    In extremely cold conditions the sheets of hexagonal cells are linked together by connecting protons, which confers solidity. Structured water formed under these conditions is known as ice.

    In extremely warm conditions the sheets of hexagonal cells lack the connecting protons and thus they retain the property of liquidity.

    In our device the extreme heat and intensive shock waves resulting from cavitation cause the hydrogen and oxygen atoms in affected water molecules to temporarily disassociate and then re-associate as the water cools. As they re-associate, they do so in sheets of hexagonal-shaped cells.

    Whether solid or liquid, structured water is said to be exclusionary because it tends to reject any material that is not structured water. This is why icebergs, which are formed from salt water in the oceans, contain no salt.

    In liquid form, structured water tends to collect at hydrophilic surfaces, such as Hot Tub surfaces, pipes, equipment and even the surface of the water itself. There it will reject any material that is not structured water.

    The Spa Tiger is very easy to install. It ships fully assembled with unions and requires no electricity. Unless a loop is required due to space considerations on existing equipment sets, an experienced installer should be able to complete the installation within 15 minutes.

    IMPORTANT: Spa Tiger will not work if not installed in the incorrect direction. 

    The Spa Tiger does not need a separate electrical supply, but operates on the flow of water as driven by the Spa's pump. It activates at a minimum flow rate of 1.8m3 per hour. In essence, the device converts the energy provided by the pump into a variety of benefits. 

    The more the pump runs, the more Spa Tiger is doing to sanitize, clarify and enhance water quality as well as protecting pool surfaces from buildup and staining. 

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