A pre-filter reduces the amounts of contaminants and impurities in your spa water as it come out of the hose. If you’re thinking of doing your quarterly spa water drain and refill this coming long weekend (great thinking!), consider using a pre-filter when you’re filling up the spa to get a head start on clear, clean water.
Why use a pre-filter?
Usually a garden hose is used to fill up the hot tub with water when needed. Water from the hose frequently contains mineral deposits like iron, magnesium or calcium, micro sediments or even remnants of water treatment products.
Using a pre-filter when filling your hot tub helps ensure that the spa water is as clean as possible to reduce the load on the spa's filtration system and filters. This extends the longevity of both and can even make it easier to balance chemicals.
How does a pre-filter work?
A pre-filter threads on to a standard size garden hose. Any water that comes out of the hose must pass through the pre-filter, thus only allowing pure, clean water to come out of the hose. Most pre-filters have multiple layers of media to ensure optimal filtration down to the tiniest microns, though different brands may use different filtration media or methods.
For those living in areas with water impurities or high mineral content water like from wells, a pre-filter is essential to keeping your water clean and clear. |
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How do I use a pre-filter?
Pre-filters are incredibly easy to use, as most are fitted to attach to any standard garden hose. When you wish to use the pre-filter, simply thread it onto your garden hose and fill your hot tub as normal. When you're done, remove the pre-filter. That's it!
☆ You'll know it's time to replace your pre-filter when the filter begins to restrict water flow from the hose.
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