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- Robelle 8-Pounds Premium Pool Calcium Up, Cal...
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Item #:
73079610
Robelle 8-Pounds Premium Pool Calcium Up, Calcium Hardness Increaser
Item #:
73079610
GBP 33
Price Details
Price
GBP 33
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
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Imported from USA store
QTY:
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Saturday, July 11
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What Stands Out
Premium Formula
Robelle’s 8-pounds calcium hardness increaser offers a superior blend, ensuring effective pool maintenance while preventing corrosion and scaling, promoting a safely balanced swimming environment.
Fast Dissolving
This product dissolves quickly in pool water, allowing for rapid adjustment of calcium levels and minimal wait time, ensuring crystal-clear water ready for use in no time.
Value Size
The 8-pound packaging provides ample supply for larger pools or frequent use, delivering great value and convenience for pool owners committed to maintaining optimal water quality.
Product Details
- Robelle calcium plus is used to raise calcium hardness levels when measures drop below the recommended range of 200-400 ppm
- Prevents corrosion of pool equipment and etching of pool plaster
- Dry granular product that increases total hardness in pool water
- Test water for calcium hardness and add product accordingly
- Different desired ranges for different pool types
- Easy-to-follow directions for adding the product based on pool size and desired increase in calcium hardness
| Item Weight | 8 lbs (3.63 kg) |
Who Should Buy?
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Pool Owners
Ideal for pool owners needing to increase calcium levels for optimal water balance and equipment protection.
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Hard Water Areas
Beneficial for users in hard water regions to maintain appropriate calcium hardness in their pools.
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Chemical Balance Newbies
Great for new pool owners wanting to easily manage their pool's chemical balance and prevent damage.
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Soft Water Pools
Not suitable for pools with soft water, as excessive calcium can lead to scaling and other water issues.
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Saltwater Pools
Users with saltwater pools may require different chemicals, as this product is not specifically designed for them.
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Over-using Chemicals
Not recommended for those who frequently add chemicals without testing, potentially leading to imbalanced water chemistry.
Product Description
Robelle 8-Pounds Premium Pool Calcium Up, Calcium Hardness Increaser
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is Robelle 2808B Calcium Hardness Increaser used for?
Answer: Robelle 2808B Calcium Hardness Increaser is designed to raise the calcium hardness level in swimming pools. Proper calcium hardness is essential for preventing corrosion of pool surfaces and equipment, as well as for maintaining balanced water chemistry. Without adequate calcium levels, you may experience issues such as etching of plaster, leaking plumbing, and increased wear on pool accessories. Using this increaser helps ensure your pool remains safe and enjoyable. -
Question:
How do I use Robelle 2808B Calcium Hardness Increaser?
Answer: To use Robelle 2808B Calcium Hardness Increaser, first measure your pool's current calcium hardness level with a reliable test kit. Then, calculate how much increaser you'll need based on your pool size. Slowly add the recommended dosage to your pool, preferably in a skimmer or directly to the deep end while the pump is running. This ensures better dispersion. Regular use during peak season or after water changes can help maintain optimal levels. -
Question:
What are the benefits of maintaining proper calcium hardness in a pool?
Answer: Maintaining proper calcium hardness is crucial for preventing damage to pool surfaces and equipment. Balanced calcium levels help reduce corrosion and scaling, protecting the pool's finish and plumbing. Additionally, it contributes to comfortable swimming conditions and prevents issues like cloudy water. Regular monitoring and adjustments using Robelle 2808B can lead to a cleaner, more inviting swimming environment. -
Question:
What happens if the calcium hardness level is too low?
Answer: If the calcium hardness level in your pool is too low, it can lead to various problems, including corrosion of metal fixtures, etching of plaster, and increased acidity in the water. Low calcium levels may also cause damage to heaters and other equipment, leading to costly repairs. Therefore, using Robelle 2808B Calcium Hardness Increaser can prevent these issues and keep your pool functioning correctly. -
Question:
Can I use Robelle 2808B Calcium Hardness Increaser in any type of pool?
Answer: Yes, Robelle 2808B Calcium Hardness Increaser is suitable for various types of pools, including those made of vinyl, fiberglass, and concrete. It is important to follow manufacturer instructions and ensure that you adjust the dosage according to your specific pool requirements. Whether you own an above-ground, in-ground, or hot tub, maintaining proper calcium hardness is essential for all. -
Question:
How often should I check calcium hardness levels in my pool?
Answer: It is recommended to check the calcium hardness levels in your pool at least once a month or after significant rainfall, water usage, or refilling. Routine testing ensures that your pool chemicals remain balanced and effective. Frequent monitoring allows you to catch any imbalances early and use Robelle 2808B Calcium Hardness Increaser promptly to address low levels, ensuring your pool stays in top condition. -
Question:
Is Robelle 2808B Calcium Hardness Increaser safe for swimmers?
Answer: Yes, when used as directed, Robelle 2808B Calcium Hardness Increaser is safe for swimmers. The product is formulated to enhance your pool's water quality without introducing harmful chemicals. However, it is essential to wait for the recommended time after dosing before allowing swimmers to enter the pool, ensuring that the product is well-dispersed and the chemical balance is optimal for safe swimming. -
Question:
What should I do if I accidentally add too much calcium hardness increaser?
Answer: If you have added too much Robelle 2808B Calcium Hardness Increaser, you should retest your pool water immediately. If calcium levels are too high, you may need to partially drain the pool and refill it with fresh water to dilute the calcium concentration. Keeping the pool water balanced is critical to prevent equipment damage and ensure a safe swimming environment, so monitoring is key after adjustments. -
Question:
How does Robelle 2808B compare to other calcium hardness increasers?
Answer: Robelle 2808B stands out from other calcium hardness increasers due to its high purity and effectiveness. It is formulated to quickly dissolve in water and raise hardness levels without contributing to cloudy water. Its precise formulation allows for straightforward usage and blending, making it a reliable choice for pool owners concerned about maintaining optimal water chemistry. Choosing Robelle can make a significant difference in your pool care routine. -
Question:
Where can I buy Robelle 2808B Calcium Hardness Increaser for Pools, 8-Pounds?
Answer: You can buy Robelle 2808B Calcium Hardness Increaser for Pools, 8-Pounds from Ubuy in UK. Ubuy offers a wide variety of pool care products, ensuring you find the right solution for your pool maintenance needs with convenient access and various options.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
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“Not madly expensive like I thought, and much quicker than promised.”
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12 June 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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GBP 33
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Saturday, July 11
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Fastest cross-border delivery
Features & Benefits
- Robelle calcium plus is used to raise calcium hardness levels when measures drop below the recommended range of 200-400 ppm.
- Low calcium hardness level can cause corrosive water.
- Prevents the staining or etching of your pool's surface.
- Ideal Calcium Hardness range: 200 - 400 ppm.