Descaler Cartridge FAQs

No, the SpiroPure polyphosphate cartridges are not refillable. We do however, have empty refillable cartridges available for purchase.

Yes, SpiroPure polyphosphate cartridges can be used with municipal city or well water.

We do not list flow rates for SpiroPure products like our polyphosphate cartridges as actual flow rates can vary depending upon a number of individual factors including water pressure rates, water temperatures, and the amount of impurities present in the water. Similarly, how many gallons the cartridge will treat will depend on your individual situation and water conditions. In general, we recommend changing the filters every 6-12 months depending upon water quality and usage.

The SP-SC descaler cartridges have a temperature rating of 40°F - 100°F (4°C - 38°C). Anything outside of this range can affect the performance and integrity of the media and cartridge. It is generally recommended that whole-house water filters be installed at the water main before the water heater for optimal performance.

No, a standard hard water test kit will not be useful for testing the effectiveness of this filter. This is because the descaler technology does not actually “soften” or remove the healthy minerals responsible for hard water (calcium and magnesium). Instead, the food-grade anti-scale beads form a coating that causes the minerals to be unable to stick to surfaces. As a result, you get the prevention of annoying and unsightly scale deposits on your plumbing fixtures, appliances, and in plumbing pipes, but without the need for electricity, messy salts, and harmful wastewater that comes with a traditional sodium water softener.

SpiroPure descaler filters do not work by filtering contaminants at a certain micron rating, but rather employ technology to prevent scale and hard water buildup by coating the minerals responsible for hard water (calcium and magnesium) in a food-grade barrier to prevent them from sticking to surfaces.

The SP-SC series descaler cartridges do not hook up directly to the shower head, but are designed as a whole house filter cartridge. The SpiroPure descaler cartridge can be installed inside of a filter housing of the corresponding size, whether the housing is stand alone or a part of a whole house filter system or similar. Replacing filter cartridges in a housing is a simple process that can be completed by the homeowner. If you are in the market for a system, we recommend the SpiroPure SP-WH300 whole house water filter system.