Description
BluWater Technology PF-100 10,000 gallon Pre-Filter is your first line of defense for spa water quality. Designed to be attached to a standard garden hose, this 5-micron carbon block pre-filter treats tap water before you fill your hot tub or spa, helping you achieve cleaner water from day one and reducing the work of chemical balancing down the line.
What makes the PF-100 stand out?
- Removes a broad spectrum of contaminants before they enter your spa, including phosphates, dust, grit, and sediments that can cause staining and scale.
- Reduces metal contaminants and dissolved substances such as arsenic, cadmium, aluminum, iron, lead, copper, and iron oxide, along with VOCs and mercury vapors, which can impact water clarity, taste, and odor.
- Improves water clarity, color, and odor, so you start with a cleaner canvas for your spa’s startup chemistry.
- Supports easier and more stable chemical balancing, making bromine or chlorine management smoother and more predictable.
- Capable of filtering up to 10,000 gallons of water per cartridge, delivering long-lasting performance between replacements.
Easy-to-use, practical filtration
Attach the PF-100 to any standard garden hose, turn on the water, and fill to your desired level. After filling, you’ll have water that’s already primed for pH and alkalinity balancing before you bring it into the spa. For best results, follow the startup guidance in the Genesis manual to ensure optimal system readiness and performance.
Use cases and ideal scenarios
- Filling a hot tub or spa from well water or hard water sources where mineral content and contaminants are higher.
- Preparing spa water when using a bromine generator, where cleaner fill water helps extend cartridge life and stabilize starting chemistry.
- New spa installations or routine spa maintenance where clean incoming water reduces staining, scale, and residual tastes or odors.
Installation, maintenance, and care
installation is straightforward: connect to a standard garden hose, fill to the appropriate level, and proceed with pH and alkalinity balancing. Replace the cartridge when the flow becomes restricted or the water fills up the filter, ensuring you stay within the 10,000-gallon capacity rating for optimal performance.
With the PF-100, you’re not just filtering water—you’re setting up a smoother spa startup, lower maintenance, and a more enjoyable soak from day one. If you want consistently cleaner fill water, easier chemical management, and a pre-filter that’s purpose-built for spa applications, the PF-100 is the clear choice for spa enthusiasts who value reliable, thorough filtration.
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phosphates dust rust grit dediment arsenic cadmium |
chlorine tastes odors cloudiness colors aluminum H2S |
iron lead copper iron oxide V.O.C.'s mercury vapors |

