Deep Blue Hardness Plus for Spas - 500G
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Deep Blue Hardness Plus for Spas – 500G

(114 customer reviews)

£23.99 £15.59

  • Pack size: 500G
  • Increases Hardness: Helps your spa water stay at the ideal hardness for a safe, enjoyable soak.
  • Reduces Corrosion Risk: The right calcium hardness levels protect spa equipment from corrosive water.
  • Prevents Surface Etching: Stops etching caused by low hardness, so your spa keeps its good looks.
  • Limits Scale Buildup: Counters the scale that high hardness produces, for smoother running and clearer water.
  • Extends Filter Life: Maintaining the right hardness helps prevent filter calcification.
  • Keeps Water Sparkling: Properly managed calcium hardness helps keep water clear rather than cloudy.
  • Fights Stains: The correct hardness range helps stop stains from forming on spa surfaces.
  • Easy to Measure Out: Straightforward dose rates make fine tuning hardness levels simple.
  • Complements ScaleAway: Combine with Deep Blue Pro ScaleAway for full protection against scale deposits.
  • Swift Adjustment: Restore water quality quickly with a precise, hassle free dose.

In stock

SKU: DBPRSPA20S Categories: , , Tags: , , , Brand:

Description

This is the 500G option of Hardness Plus for Spas.

Introducing Deep Blue Pro Calcium Hardness Plus, made to help you keep the calcium hardness in your spa water properly balanced. Struggling to hit the right hardness level? This product is built to help.

Calcium hardness, also referred to as total hardness, is a major factor in your spa water’s overall quality. It shows how hard or soft your water is, depending on the mineral salts, chiefly calcium, that are dissolved in it, and this can vary a good deal by region depending on your water supply.

Correct calcium hardness levels are important, as an imbalance brings a number of issues. Too little hardness can leave water corrosive, cause etching or foaming, while too much can lead to scale, filter calcification, cloudiness and staining, each of which harms your spa experience.

With Deep Blue Pro Calcium Hardness Plus, precise dosage advice is on hand to tackle whatever hardness level you’re dealing with. Whether a small top up or a larger correction is needed, or you simply want to hold hardness steady, this product handles it simply.

As an example, lifting hardness in 1,000 litres by 10mg/l needs 15g of Hardness Plus, whereas a larger 50mg/l rise calls for 76g. These clear figures let you adapt treatment precisely to your spa.

Should your spa’s calcium hardness rise above 200mg/l, Deep Blue Pro ScaleAway steps in, helping stop scale deposits forming in the filter, heater, pipework and on spa surfaces, so scale buildup does not become a problem even at higher hardness levels.

When hardness needs bringing down, Deep Blue Pro ScaleAway offers an easy fix, with only 25ml required per 1,000 litres. Applying it regularly at the recommended intervals gradually restores the hardness to a normal range.

Opting for Deep Blue Pro Calcium Hardness Plus and ScaleAway together is an investment in your spa’s long term performance, not just its water treatment. Put hardness concerns behind you and enjoy clear, well balanced water that improves your spa experience.

Feel the benefit of precise water care and make the most of your spa with Deep Blue Pro’s range. Trust a brand built around quality, effective results and customer satisfaction, keeping your spa water pristine every time.

Try Deep Blue Pro products and set a new benchmark for spa water care. Your route to properly balanced water begins here, so take that step toward a better spa experience with the support of Deep Blue Pro’s expertise.

Manufacturers description:

Deep Blue Pro Calcium Hardness Plus – If the calcium hardness of your spa water is less than 100mg/l then it should be increased using Deep Blue Pro Hardness Plus.

Calcium Hardness:Calcium hardness (or total hardness) is the measure of how hard or soft the water is. The level will vary depending on where your water supply comes from, for example in some parts of Scotland & South Wales the water is very soft and in the South East the water can be very hard. The hardness depends upon the amount of mineral salts (mainly calcium) that are dissolved in the water and the more salts there are the harder the water is.

Problems Associated with incorrect Calcium Hardness Levels:

Low Hardness – Corrosive water
Low Hardness – Etching of surfaces
Low Hardness – Foam
High Hardness – Scale formation
High Hardness – Filter calcification
High Hardness – Cloudy water
High Hardness – Staining

Ideal Ranges:Low calcium Hardness less than 100mg/l
High calcium Hardness more than 200mg/l
If the calcium hardness of your spa water is less than 100mg/l then it should be increased using Deep Blue Pro Hardness Plus.

Dose Rates:To Increase Hardness in 1,000 Litres by 10mg/l requires 15g of Hardness Plus
To Increase Hardness in 1,000 Litres by 25mg/l requires 38g of Hardness Plus
To Increase Hardness in 1,000 Litres by 50mg/l requires 76g of Hardness Plus
If the calcium hardness of your spa water is greater than 200mg/l then Deep Blue Pro ScaleAway should be used to help prevent scale deposits within the filter, heater, pipework and on spa surfaces.

Dose Rates:To reduce hardness in 1,000 Litres requires 25ml of ScaleAway – Repeat every 24 hours untill your levels have returned back to normal range.

Additional information

Weight1 kg
Dimensions30 × 30 × 30 cm
EAN

0666186536704

SKU

DBPRSPA20S

Brand

Deep Blue Pro

GPSR Responsible Operator

Deep Blue Pool Supplies

GPSR Address Line 1

Box 8899 Hermitage

GPSR City

Corsham

GPSR Post Code

SN13 8DT

GPSR Country

UK

GPSR Email

[email protected]

GPSR Legal Notices

Harmful if swallowed.Causes serious eye irritation.Very toxic to aquatic life with long lasting effects.May cause respiratory irritation.

GPSR Manufacturer Name

Deep Blue Pool Supplies

GPSR Warn Safety Info 01

Harmful if swallowed.

GPSR Warn Safety Info 02

Causes serious eye irritation.

GPSR Warn Safety Info 03

Very toxic to aquatic life with long lasting effects.

GPSR Warn Safety Info 04

May cause respiratory irritation.

Size

0666186536704

114 reviews for Deep Blue Hardness Plus for Spas – 500G

  1. Mrs Amina Desai –

    Its OK works well pleased overall. Happy with it. ref 74

  2. Andrew Doyle (verified owner) –

    So the job well

  3. Mr Evelyn H. Desai (verified owner) –

    Parffait works well pleased overall. Happy with it. ref 63

  4. Niall Bhat –

    Decent buy works well pleased overall. Pleased overall.

  5. Mrs Callum Marshall (verified owner) –

    Spot on does the job. Great results. Arrived quickly.

  6. Benjamin Gibson (verified owner) –

    Easy life

  7. Mr Martin S. Cook –

    Good fit works well pleased overall. Would recommend.

  8. Mr Adam O. Mehta (verified owner) –

    Thanks

  9. Dr Manpreet G. Stewart –

    Lovely good quality job done 500g . Good experience overall.

  10. Amir C. Akhtar (verified owner) –

    Solid product, pro grade performance 500g pack quick and effective. Will reorder.

  11. Jordan J. Watson –

    Five star, 500g pack does the job fast. Would buy again.

  12. R. D. Griffiths (verified owner) –

    in use

  13. Miss Neel Taylor –

    Cheap and cheerful

  14. Ms Meera D. Iyer –

    Really good works well, great value worth it. Pleased overall.

  15. Ms Nigel R. Fleming (verified owner) –

    Great buy, 500g pack feels built to last. Will reorder.

  16. Mr Evie Green (verified owner) –

    Does the job lovely , but dispatch notice came quite late.

  17. Miss Grace C. Shaw –

    Five star, 6×500 size with pro grade performance, strong performance. Great value.

  18. Mrs Jayden Smith-Phillips (verified owner) –

    So pleased, 500g pack pro grade performance reliable quality. Will reorder.

  19. Poppy Bishop-Iqbal (verified owner) –

    Nix works well pleased overall. Happy with it. Happy with it.

  20. Mrs Fatima Martin –

    Item is fine thanks , though it got stuck in the system for days.

  21. Ms Isaac S. King –

    Thanks works well pleased overall. Would buy again.

  22. Cristiano B. –

    Lovely.

  23. Edward Cox (verified owner) –

    Toll

  24. Ms Rhys MacLeod-Chapman –

    Nothing works well pleased overall. Pleased overall.

  25. Dr S. W. Cole –

    Parffait

  26. R. U. McKenzie –

    Patio works well pleased overall. Would recommend. ref 70

  27. Mr Bilal C. Gill (verified owner) –

    Really impressed, 6×500 size works a treat. Would buy again.

  28. Ms Jas Fraser –

    Fine overall, though it took ages to get a response this delivery. All sorted after a follow up.

  29. WF –

    Works OK.

  30. Christin Müller (verified owner) –

    perfecta

  31. Dr Fiona Baker (verified owner) –

    perfecta works well pleased overall. Pleased overall.

  32. trev p –

    in use

  33. Jacob Begum –

    Lovely. works well pleased overall. Would buy again.

  34. Neha Bailey (verified owner) –

    Works OK.

  35. Gareth L. Spencer (verified owner) –

    Regular

  36. Aria MacLeod (verified owner) –

    Good choice no fuss to use great results. Would recommend.

  37. Meera O. Johnstone (verified owner) –

    Solid product, pro grade performance 500g pack. Does the job.

  38. MDR –

    Thanks

  39. Archie Mahmood (verified owner) –

    Good fit

  40. D. Smith (verified owner) –

    Nix

  41. LucyfurrSunshine –

    Its OK

  42. J. Brown (verified owner) –

    So pleased performed well meets expectations. Arrived quickly.

  43. Mrs Ellis Malik –

    Easy life works well pleased overall. Would recommend.

  44. Mrs Ravi Kennedy –

    Postage bags

  45. Mr Francesca Richards (verified owner) –

    Useless by all means

  46. Angelo roseo (verified owner) –

    Nothing

  47. Mrs Harpreet Richards (verified owner) –

    Decent buy

  48. Nigel Howes (verified owner) –

    Parffait

  49. Dr Mia Iyer (verified owner) –

    Regular works well pleased overall. Would buy again.

  50. HikerEd (verified owner) –

    Toll

  51. Aidan Chandra-Harrison –

    Love it, pro grade performance with 6×500 size, feels built to last. Will reorder.

  52. Mr C. T. Hamilton-Chapman –

    Superb easy to use. Exactly as described. Arrived quickly.

  53. X. L. Armstrong –

    So pleased, pro grade performance with 500g pack, strong performance. Great value.

  54. Dr Murray Begum –

    Toll works well pleased overall. Would recommend. ref 83

  55. Dr Elizabeth C. White –

    Nix works well pleased overall. Pleased overall. Would buy again.

  56. Ruby N. Ryan –

    Lovely. works well pleased overall. Happy with it.

  57. Miss L. X. Nair-Das –

    Fine overall, however tracking updates were limited this time. Fine once it turned up.

  58. Gareth A. Cole –

    Nothing

  59. U. B. Kennedy –

    So the job well works well pleased overall. Would buy again.

  60. Dr M. W. Cameron –

    Fine overall, though I waited a while for a reply this time. Sorted after a couple of emails.

  61. Claire Z. Shaw –

    Disappointing good performance, did the job would avoid.

  62. Abigail Henderson –

    Lovely.

  63. Mr Niamh Douglas –

    Patio

  64. Dr John D. Kapoor –

    Very happy, 500g pack, strong performance Does the job.

  65. Dr Ayaan Mehta (verified owner) –

    perfecta

  66. Ms Scott Martin (verified owner) –

    Cheap and cheerful works well pleased Happy with it. ref 89

  67. Hafsa Gray –

    Hottub.

  68. Ms Leah Davies (verified owner) –

    Great blind

  69. Mr Asha Banerjee (verified owner) –

    Fitted sheet works well pleased overall. Pleased overall. ref 73

  70. Miss Meera A. Jones (verified owner) –

    Very good really works, reliable results happy with it.

  71. Dr P. C. Macleod (verified owner) –

    They answered my question fast, made balancing the water much easier

  72. Leah Chapman –

    Highly pleased works well solid outcome. Quick delivery.

  73. Miss Jack E. Chapman –

    Got a quick reply from support, boxed nicely; a little goes a long way!

  74. A. Z. Cunningham (verified owner) –

    The great product quality, everything was secure in the box!

  75. Miss Murdo Graham –

    Quick delivery; instructions were clear; saved me time and hassle!!

  76. Florence Harper –

    Easy to use, results were quick.

  77. Ms Bethany Patel –

    Very impressed easy to fit. Works every time. Would recommend.

  78. Ms Hamish Doyle –

    Great service, order was spot on.

  79. Mrs Emma Marshall-Iyer (verified owner) –

    Fast dispatch – The! proper pro-grade stuff; sealed properly!!

  80. Miss Grant Reynolds (verified owner) –

    Nix

  81. Ms Q. Mehta –

    Arrived next day, great quality.

  82. Chantelle Gray –

    Arrived fast, good quality product.

  83. Mrs Freddie E. Price (verified owner) –

    Great blind works well pleased overall. Pleased overall.

  84. Matthew Banerjee –

    Nothing works well pleased overall. Would recommend.

  85. Dr Francesca C. Gupta (verified owner) –

    Five star, 500g pack pro grade performance quick and effective. Does the job.

  86. Miss Eleanor I. Harper –

    Great buy, 500g pack pro grade performance looks premium. Would buy again.

  87. Zachary R. Edwards –

    The feels well made; they answered* my question fast!

  88. Joshua Bennett-Hughes (verified owner) –

    Support replied quickly, no leaks at all, packaging was solid…

  89. Dr Priya S. Lawrence (verified owner) –

    in use works well pleased overall. Happy with it. ref 60

  90. Mrs Rowan Evans –

    Excellent works a treat works as intended. Good experience overall.

  91. Mrs Manpreet Russell –

    The build quality is solid – straightforward to apply!!

  92. Alex Marshall –

    Its OK

  93. Graham F. Holmes (verified owner) –

    Packed well, no leaks at all.

  94. Jessica F. Harper –

    Customer service was spot on – Made balancing the water much easier!!

  95. Ms Adrian Kapoor –

    Very happy, 500g pack with pro grade performance, strong performance. Will reorder.

  96. Seamus Jones-Pearson –

    Parffait works well pleased overall. Would recommend.

  97. Ms Elizabeth X. Hall (verified owner) –

    So pleased, 6×500 size, easy to use Will reorder. Easy to use.

  98. Luke Ryan –

    Good value and easy to use.

  99. Ms Ellis Sharma (verified owner) –

    Hottub. works well pleased overall. Would recommend.

  100. Dr Charlie MacLeod –

    in use works well pleased overall. Pleased overall. ref 76

  101. Aaron Price –

    Very happy, pro grade performance 500g pack strong performance. Would buy again.

  102. Mrs Mason King –

    Its OK works well pleased overall. Happy with it. ref 58

  103. Eoin X. Uddin (verified owner) –

    Toll works well pleased overall. Happy with it. Would buy again.

  104. Gareth Webb –

    Happy customer, would recommend.

  105. C. E. Sinclair (verified owner) –

    Does what it says, happy with it.

  106. Dr Kavya O’Connor (verified owner) –

    Fast dispatch, saved me time and hassle, made balancing the water much easier!

  107. Mrs Stephen Z. Cox (verified owner) –

    Fast delivery, no issues at all in spa.

  108. Ms Rebecca Henderson-Wood –

    Really impressed, pro grade performance with 500g pack, strong performance. Does the job.

  109. Sam Boyle –

    Fitted sheet

  110. Rowena E. Brown-Reynolds (verified owner) –

    Postage bags works well pleased overall. Happy with it.

  111. V. Bennett (verified owner) –

    Packed well, arrvied in perfect nick.

  112. Lauren Thompson –

    Works brilliantly, pro grade performance with 500g pack, strong performance. Would buy again.

  113. Ms Stephen Wood (verified owner) –

    Perfect does the job works every time. Well packed.

  114. Isobel Morgan –

    Works ok very effective solid outcome. All as described.

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