These mineral algaecide units are designed to make pool care easier by targeting algae growth. Once placed in the system, the minerals dissolve and circulate, helping to treat existing algae and discourage it from coming back, so water can stay clearer with regular care.

• Helps control a wide range of common pool and spa algae.
• Works for months with minimal upkeep when matched to the right gallons.
• Offered in sizes for small spas and larger pools.
• Acts as a complement to your normal maintenance routine.

For best results, choose a unit that aligns with your pool or spa’s volume and follow the product label. Results can vary depending on water conditions and usage. You can explore options and details on Walmart.com or in the app.

Many of these mineral units are rated to last up to six months in typical conditions. That timeframe can vary based on factors like bather load, weather, and how much water is replaced during the season.

• Commonly used for a full swim season in many regions.
• Some lines offer booster options to replenish minerals mid-season.
• Heavy rain, splash-out, or backwashing can reduce longevity.
• Always follow the timing guidance on the specific package.

If you have a longer season or notice algae pressure returning, consider refreshing with a compatible booster or replacing the unit according to the label. Availability and product specifics can be reviewed on Walmart.com before you buy.

Mineral algaecides can be an effective part of an overall care routine. The minerals dissolve and circulate to help reduce algae growth in the water, which can support clearer, easier-to-manage water when used as directed.

• Effectiveness depends on choosing the right unit for your gallon range.
• There are options designed for both pools and spas.
• Some selections are made for saltwater systems, where noted.
• Water conditions, circulation, and ongoing maintenance can influence results.

Because every setup is a bit different, performance can vary. Checking the gallon coverage and any system compatibility on the product page, then following the label, can help you get the most from your purchase.

Pricing can vary based on the size, formulation, and pack count you choose. Smaller units for spas typically differ from larger units for big pools, and multi-packs or booster bundles may be priced differently than single units.

• Gallon coverage (e.g., spa vs. 2.5k–5k, 7.5k–20k, 20k–30k).
• Single units versus multi-packs or booster packs.
• Different formulas or season-long options.
• Current promotions and local availability.

For the latest price and availability, check the product page on Walmart.com or in the Walmart app. You can also compare delivery, pickup, or in-store options to find what fits your budget and schedule.

Match the unit to your total water volume. These mineral algaecides are offered in clearly labeled gallon ranges so you can choose a size that covers your entire pool or spa.

• Spas and hot tubs: about 100–400 gallons, and 400–1,000 gallons options.
• Small pools: around 2.5k–5k gallons.
• Mid-size pools: roughly 7.5k–20k gallons.
• Large pools: about 20k–30k gallons.

If you use a saltwater system, look for versions designated for saltwater pools. When in doubt, verify your volume and select the product whose labeled range encompasses it. You can review specs and filter by size on Walmart.com to find the best fit.