Hot tub filters
Since the first filters appeared in commercial pools in the early 1900s, hydraulic engineers and pool designers have worked to develop better methods of water circulation and filtration. It is these two operations combined with proper water chemistry that allow pool owners to enjoy the same volume of water for years without having to continuously empty and fill the swimming pool.
Let’s take a closer look at this process. Filtration is simply the mechanical process by which suspended solids are removed from water. Water treatment, on the other hand, addresses sanitation (removal of pathogenic organisms), pH, total alkalinity, calcium hardness and total dissolved solids (TDS), which is everything in solution or dissolved in the water.
Prior to World War II, commercial pools relied on sand and gravel filters. These systems often had open tops and relied on gravity for water flow. This resulted in very large systems with flow rates of only 3 GPM per square feet. Furthermore, they had to be manually disassembled for cleaning.
At the end of World War II, this process dramatically improved with the rapid rate sand filter. This system had a closed top and could be cleaned by backwashing. Rapid sand filters, while smaller and more efficient than their predecessor, still were not practical for residential use.
Modern residential pool filtration had its birth in the 1950s when Diatomaceous Earth (DE) pressure filters became available, followed by the development of high-rate sand filters and later cartridge filters. Today, after years of refining, consumers have their choice of three types of filtration systems: high-rate sand, DE, and cartridge.
Hot tub filters remove impurities from the hot tub water by pumping it through a porous medium such as polyester fibre pleats within the filter. Canadian Spa Company use the latest pleated filter cartridges to provide the very best filtration in their hot tubs.
The new superior quality Microban filters with silver ion* provide an added level of defence that keeps your filter cleaner between cleanings. Our new filters are made with Microban® antimicrobial protection the most advanced media available to inhibit the growth of bacteria, mould and fungi that can cause fouling of the filter cartridge.
With the Microban brand, you know you’re getting continuous, durable and effective antimicrobial protection that provides an added level of defence against damaging bacteria for the useful lifetime of your spa filter.
Silver Ion is infused into the grey plastic of the Microban filter. The Silver ions can disinfect water so that micro-organisms like bacteria cannot cause disease. Silver ions act in similar ways to chlorine, but do not have the chlorine odour and are not chemical based. This means they do not usually bother people with sensitive skin the way chlorine does. While chlorine eventually fades away, silver ions remain active as long as they are present in the water.
The new filter/skimmer basket from Canadian Spa offers improved 100 sq ft filtration (2 x 50 sq ft Silver Ion ‘Microban’ filters) together with a Pre-filter mesh to capture impurities.
Some commonly used words:
Effective Filtration Area: The total area in square footage of the filter capable of filtering water, for example: 50sq ft filter.
Filtration (Water): For complete flow-through purification using a single or dual canister filter system.