FILTERS & FILTER MEDIA
Filtered Solutions For Pools And Spas
No matter what form they take, filters and filter media are without doubt one of the most important factors that make up an efficient water cleaning system. Ever-improving technologies have boosted performance and they’re now the first place to start looking when it comes to combining effective water management and cost savings. This issue, we take a closer look at the available products in this competitive sector
By Jon Wadeson
available. Despite the sector being a fairly unglamorous one and often viewed as low tech when compared to many other product sectors, technology is playing its part and providing new and improved solutions for what is undoubtedly a very important part of any pool and spa setup. With improved performance comes the conservation of water and therefore the reduction of operating costs, so the advances in the sector and the benefits they provide are welcomed by all. With plenty of choice already on offer, combined with an ever-widening range of emerging technologies and products, sometimes choosing the correct solution can be hard. Thankfully though, there are plenty of suppliers on hand to offer advice and guidance as to the right solution for a variety of pool and spa applications.
W
MAGNUM CARTRIDGE FILTERS BENEFIT BOTH SPAS AND POOLS Pleated cartridges have been the filter of choice for spa pools for many years and New Zealand based Magnum Filters has been manufacturing them since 1982. Peter Hogg, owner of Spaeuro which supplies the UK and European market with Magnum cartridge filters said: “Over the years I have heard many arguments for and
against using cartridge filters for swimming pool filtration and which is the best filtering media to use in a cartridge.
A standard Magnum Filter cartridge, which uses Reemay fabric for its filtering media, has a nominal micron rating of around 30 microns
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hen it comes to swimming pool and spa filters and the media that can be used, there really is a wide range of options
“Recently cartridge filtration for swimming pools has become more and more common especially in the USA and Australia. One of the main reasons is water conservation. Cartridges cannot be backwashed and have to be cleaned with a hose which takes far less water than the normal backwash.” A standard Magnum Filter cartridge, which uses Reemay fabric for its filtering media, has a nominal micron rating of around 30 microns. However after the cartridge has collected dirt and debris, a dirt cake forms on the outside of the fabric. This dirt cake can then become a further filtering mechanism which results in finer filtration. It is conceivable that the micron rating can go down to as low as 3-5 microns. With the added advantage of having a large surface area you end up with a very efficient filter unit which maintains adequate flow that requires very little maintenance. However, there is an optimum surface area on any given size of cartridge where filtration is at its most efficient and it’s worth noting that some cartridge manufacturers push the boundaries and in doing so, have to add too many pleats, resulting in them being crammed together, so much so that the dirt and debris will not travel down the full depth of the pleat. This means that only a very small portion of the cartridge is filtering and premature blockage is inevitable. Something that’s never the case with Magnum’s products.
FIBALON® – HIGH-TECH FILTERING IN A MINI FORMAT Available through Pool Supplies Limited, FIBALON®
is an innovative and patented
polymer fibre filter which was developed in conjunction with the University of Technology Nuremberg Georg Simon Ohm. The secret of FIBALON®
is the interior of
the fibrous ball which consists of a slightly denser core and a softer wrap. The balls nestle together to form a consistent filter
Available through Pool Supplies Limited, FIBALON® is an innovative and patented polymer fibre filter which is suitable for use in swimming pool sand filters, as well as cartridge filters
bed. The deliberately chosen spherical shape maximises the filter media’s surface area and therefore a high dirt capacity.
The company also developed the DyFix® fibre fixation which yields an unusually high particle retention rate and provides deep penetration of particles into the FIBALON® media bed to provide excellent filtration results.
One of the big advantages of the product is its ease of handling, thanks to its low weight. A 350g bag of FIBALON®
is equivalent to
a 25kg bag of sand or glass media. Long life and maintenance free, FIBALON®
is
universally applicable and suitable for use in swimming pool sand filters, as well as cartridge filters. This opens the market for FIBALON®
up to above-ground pools, spas
and hot hubs too. FIBALON®
offers genuine cost savings
through reduced water consumption through reduced backwashing, reduced energy consumption as a higher standard of filtration is delivered in a shorter period of time, meaning the filtration system operating cycle can be reduced. Also greatly reduced is the wear and tear on the filtration systems due to lower operating pressures.
In addition to those cost savings, the user will see a reduced chemical consumption as flocculants will no longer be required and biofilm formation is inhibited.
SPN December 2015 45
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