A pre-filter reduces the amount of contaminants and impurities in your spa water as it comes 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 Hot Tub 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 Hot Tub Pre-Filter Work?
A pre-filter threads onto 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.
How to Use a Hot Tub 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.
Looking for a New Hot Tub Pre-Filter?
Disposable Pre-Filter
Use this unique kind of pre-filter over your skimmer basket to filter water before it gets into the filters themselves.
Pleatco PureStart Pre-Filter
Attaches to your garden hose to capture dirt, heavy metal and mineral particles before they even enter the spa.
ProFill Hot Tub Pre-Filter
Also attaches simply to the hose to remove multiple contaminants and sediments from the water.
EcoOne Charcoal-Based Pre-Filter
Easily attaches to your hose, with a dual chamber, charcoal-based filter to remove both organic and metal contaminants.