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Black/White (with silver) (20K-30K gal)
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- Treats 20K – 30K gallons of water
- Eliminates All types of Pool Algae
- Effective for up to 6 Months
- Reduces Chemical Demand
- Simplifies Pool Care
- Ideal for Chlorine, Salt, UV or Ozone systems
- NSF/ANSI 50 Certified

Questions? Please contact our Support Team.
$99.00
PoolRx+ contains a proprietary blend of minerals that continuously and effectively eliminate algae. The specially treated alloy cylinder is packed with PoolRx+ granular formulation. These minerals immediately dissolve out of the cylinder and form a stable residual throughout the pool water. The minerals eliminate the algae while freeing up low levels of chlorine to be more active and productive in the water. During the pool’s filtration process the minerals are rejuvenated every time they return and pass through the cylinder. The granular minerals are lost from algae kill, backwashing, splash out and filter cleaning. The harder the minerals work and the tougher the conditions, the shorter their lifespan. PoolRx+ works synergistically with a constant low level of chlorine. Residential (0.5 – 1.0ppm); Commercial (1.0 – 5.0 ppm)
Active Ingredients:
| Copper Sulphate Pentahydrate: | 86.85% |
| Zinc Sulfate Monohydrate: | 1.51% |
| Silver Nitrate: | 0.40% |
| Other Ingredients: | 11.24% |
| Total: | 100% |
All minerals completely dissolve into the water within 3-4 hours. Keep the unit in the pool even after minerals are dissolved. It’s okay to swim as soon as the unit is placed in the water.
Pre-installation
- Test the water for metals like copper or iron. If the levels are above 0.2 ppm.
- Choose the right PoolRx+ product based on the pool or spa total gallons of water;
- Start with a clean filter;
- Set your type of filter correctly (see filter settings);
- Check that pH is between 7.2 and 7.8;
- Check that chlorine level is below 10.0 (ten) ppm.
Installation
Place the unit in the skimmer (if there is good
water flow), or pump basket.
Post-installation (maintenance)
Note: PoolRx+ minerals will start eliminating algae once completely dissolved in the water. Minerals completely dissolve in the water.
- Maintain a clean filter at all times to capture the dead algae;
- Maintain a chlorine level of 0.5 ppm to 1.0 (one) ppm with PoolRx+ products;
- If the pool is green or cloudy, we recommend maintaining a chlorine level of 2.0 (two) ppm until it clears;
- Do not shock unless necessary, even if the chlorine level is low;
- Maintain the water pH between 7.2 to 7.8.
No need for other algaecides, speciality chemicals like phosphate removers or sequestration agents. Do not use with bromine or biguanides products.
PoolRx+ has a NSF 50 certification for safety and quality.
All minerals completely dissolve into the water within 3-4 hours. Replace the unit every 4 to 6 months. The minerals longevity is determined by algae kill, backwash and splash out.
Efficient Filtration
Keep the filter clean to capture dead algae. Keeping the filter clean is critical for the PoolRx+ products to work effciently and help capture the dead algae in the circulation process. This will help reduce the vacuuming and brushing of algae on the pool or spa surface.
Green to Clear
If you are starting with a dirty spa or pool, backwash or clean the filter every few days.
Copper Levels with PoolRx+
It is normal if the copper levels rise with PoolRx+ products. PoolRx+ minerals have a proprietary chelation process that bonds to the metals on a molecular level. This allows higher levels of copper, silver and zinc in the water without staining concerns.
This formula and chelation process make PoolRx+ products effective against algae and bacteria while reducing the need for high chlorine levels (0.5 to 1.0 ppm chlorine when the water is clear). Some testing methods may recommend a stain control product or draining the pool. These methods do not consider the chelation process that bonds the PoolRx+ minerals to the metals. Adding stain control products is not necessary.
Chlorine and other Chemicals
PoolRx+ products make chlorine more active. Therefore, only small amounts of chlorine are
necessary (0.5 – 1.0 (one) ppm). Do not let the pH go above 7.8, as it would make the chlorine ineffective. If the spa or pool are clear, do not shock the body of water, even if the chlorine levels are low. Do not add other algaecides or phosphate removers.
Not compatible for use with bromine or biguanides products.
Recommended Filter Settings (to optimize mineral flow)
Sand Filter
- Backwash and rinse filter until it’s clean.
- Switch the gear from “Filter” to “Bypass / Re-Circulate”.
- Add the unit in the skimmer or pump basket.
- Let the pool run for a full cycle of 12 hours.
- Place the gear back to “Filter”, after 12 hours of run cycle.
DE Filter
- Clean filter completely.
- Add minimum required amount of DE. Don’t overpack filter, so that minerals don’t get caught in the filter.
- Place the unit in the skimmer.
- Run the pool for 6-12 hours or full run cycle.
Cartridge Filter
- Remove the cartridge from the filter housing and clean it.
- Place the unit in the skimmer or pumpbasket.
- Run the pool for 6-12 hours or full run cycle.
- Place the cartridges back into the filter, after 6-12 hours or full run cycle.
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Clean or backwash your filter before adding PoolRx+ and remove all debris from skimmer and pump basket. Place the PoolRx+ pool unit into Pump Basket or Skimmer. Ideally place in pump basket for increased water flow.
The PoolRx+ pool unit should be added to the pool when the pump has at least 3 to 4 hours left on run cycle. This will ensure the granular completely dissolves out of the unit and through the filter into the pool. Pump should run during the heat of the day. Your pool should turn over its total volume of water at least 1.5 times per day. Generally, this will require 6 to 8 hours of pump runtime depending on gallons of water and pump flow rate.
We recommend starting with a new PoolRx+ DANGER pool unit every year for best results. The rejuvenating cylinder gets calcified and oxidized during the year. The PoolRx+ granular minerals are lost from algae kill, backwashing, splash out and filter cleaning. The harder the minerals work and the tougher the conditions, the shorter their lifespan. Add a PoolRx+ booster when chlorine demand is increasing, there is algae growth or the water looks a little dull, even though the water is balanced and has at least 0.5-1.0 ppm of chlorine. You know it’s time to replace these lost granular with the PoolRx+ booster (Part #332001). For seasonal markets, start with a new PoolRx+ pool unit at the beginning of each swim season.
Maintain normal pool chemistry ranges
| Residential | Chlorine (ppm) | min. 0.5 – 1.0 |
| Commercial | Chlorine (ppm) | 1.0 – 5.0 |
| – | pH | 7.2 – 7.8 |
| – | Alkalinity | 80 – 120 |
| – | Cyanuric Acid | 10 – 80 |
| Weight | 19.2 oz |
|---|---|
| Dimensions | 3.25 × 3.25 × 4.5 in |
| Brand | PoolRx+ |
| Treats gallons | 20K – 30K |
| Use for | Pool |
| Pack | Single unit |
| Color | Black/white |
Latest reviews
Black/White (with silver) (20K-30K gal)











A friend of mine recommended Pool RX to me several years ago and I will never open my pool again without this product! My pool is a salt water system and this product works wonderfully with my system. I never added any algaecide at all this year and the water is crystal clear. I recommend this to all of my family and friends that own a pool. Best money I spend each year to keep my pool clean!
This is my third year using pool RX and I’ve never had more beautiful pool water it just stays perfectly clear of any algae I’ve cut my product use for chemicals nearly in half so glad I found this product can’t say enough good things about it never turning back!
Thank you PoolRX
It keeps my pool perfect all year long
Love this product
PoolRx has saved me money and time – fewer chemicals and less pool scrubbing necessary. I’ve used it for 4 years and have only had to obtain a booster one time due to the extremely high temps we had for several weeks. I highly recommend!