Description
Welcome to the world of Deep Blue Pro 6 x 500g Spa Hardness Plus, your ultimate solution for maintaining the perfect balance of calcium hardness in your spa water. If you’ve been struggling with maintaining the ideal calcium hardness levels, fret not, as Deep Blue Pro Hardness Plus is here to the rescue.
Calcium hardness, also known as total hardness, plays a crucial role in determining the overall quality of your spa water. It’s a measure of how hard or soft the water is, influenced by the mineral salts, primarily calcium, dissolved in the water. The geographical location of your water source can greatly impact its hardness, with variations observed across different regions.
Ensuring the correct calcium hardness levels is essential to avoid a myriad of potential issues associated with imbalanced water conditions. Low hardness can lead to corrosive water, surface etching, and foam formation, while high hardness may result in scale formation, filter calcification, cloudy water, and staining, all of which can deteriorate the quality of your spa experience.
Deep Blue Pro 6 x 500g Spa Hardness Plus comes to your rescue with precise dosage recommendations to address varying hardness levels. Whether you need to increase the hardness by specific increments or maintain it within the ideal range, this product offers a simple and effective solution.
For instance, to increase the hardness in 1,000 litres by 10mg/l, you would require 15g of Hardness Plus. If a more significant adjustment is needed, such as raising the hardness by 50mg/l, 76g of Hardness Plus should be added. These clear dosage guidelines make it easy to customize the treatment according to your spa’s requirements.
However, if your spa water’s calcium hardness exceeds 200mg/l, Deep Blue Pro ScaleAway steps in to prevent scale deposits within the filter, heater, pipework, and spa surfaces. This complementary product ensures that even in high-hardness scenarios, your spa remains free from the detrimental effects of scale buildup.
In cases where hardness reduction is necessary, Deep Blue Pro ScaleAway offers a straightforward solution. With just 25ml of ScaleAway required to reduce hardness in 1,000 litres, this product simplifies the process of restoring your water to the optimal hardness levels. Regular application at recommended intervals ensures a gradual return to the desired hardness range.
By choosing Deep Blue Pro 6 x 500g Spa Hardness Plus and ScaleAway, you’re not just investing in water treatment products; you’re investing in the longevity and performance of your spa. Say goodbye to worries about improper hardness levels and welcome a world of balanced, crystal-clear water that enhances your spa experience to new heights.
Experience the difference that precise water treatment can make and unlock the full potential of your spa with Deep Blue Pro’s innovative solutions. Trust in a brand that prioritizes quality, effectiveness, and customer satisfaction, ensuring that your spa water remains pristine and inviting, every time you take a dip.
Embrace the power of Deep Blue Pro products and discover a new standard in spa water maintenance. Your journey to perfectly balanced water starts here. Take the plunge towards a revitalized spa experience, supported by the expertise and reliability of Deep Blue Pro.
Manufacturers description:
Deep Blue Pro 6 x 500g Spa 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, Etching of surfaces, Foam. High Hardness – Scale formation, Filter calcification, Cloudy water, 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 until your levels have returned back to normal range.







Murdo Fraser (verified owner) –
Decent buy works well pleased overall. Pleased overall.
Mrs Niamh T. Edwards –
Useless by all means
Mr Mairi Douglas –
Its OK
Rishi U. Boyle –
Hottub. works well pleased overall. Would recommend.
Ms Molly F. Stewart (verified owner) –
Works brilliantly, pro grade performance with 500g pack, strong performance. Would buy again.
Miss M. V. Ryan –
Disappointing good performance, did the job would avoid.
Dr Simran Mitchell (verified owner) –
Nothing works well pleased overall. Would recommend.
Alistair Barnes (verified owner) –
Works ok very effective solid outcome. All as described.
Millie Y. Edwards –
Patio works well pleased overall. Would recommend. ref 70
Mr Brodie Y. Baker –
Disappointing good performance, did the job would avoid.
Alisha Q. Thompson –
Cheap and cheerful works well pleased Happy with it. ref 89
Mr Murdo Thomas (verified owner) –
Easy life works well pleased overall. Would recommend.
Ahmed D. White (verified owner) –
So pleased, 500g pack pro grade performance reliable quality. Will reorder.
Ms Rohan V. Cook –
Fine overall, however tracking updates were limited this time. Fine once it turned up.
Teddy G. Watson –
Five star, 500g pack does the job fast. Would buy again.
Miss P. Chowdhury –
Thanks works well pleased overall. Would buy again.
Chloe R. Thomas –
Love it, pro grade performance with 6×500 size, feels built to last. Will reorder.
Dr K. O. Desai (verified owner) –
Lovely. works well pleased overall. Would buy again.
Chloe Allen –
Nothing works well pleased overall. Pleased overall.
Miss Erin Johnson (verified owner) –
Parffait works well pleased overall. Would recommend.
Mr Ryan C. Hill –
Toll works well pleased overall. Would recommend. ref 83
Jack Kimber (verified owner) –
Thanks
Dr Niall M. Byrne (verified owner) –
Easy life works well pleased overall. Would recommend.
Logan Harper (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Logan Harper (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Miss Colin K. Kapoor (verified owner) –
Highly pleased works well solid outcome. Quick delivery.
petermans –
Toll
Deliencourt –
Parffait
Arjun Murphy –
Cheap and cheerful works well pleased Happy with it. ref 89
Dr Z. P. Byrne –
Great blind works well pleased overall. Pleased overall.
Katherine A. Wright (verified owner) –
Decent buy works well pleased overall. Pleased overall.
Ms Elliot T. Morgan (verified owner) –
Thanks works well pleased overall. Would buy again.
Ms Elliot T. Morgan (verified owner) –
Thanks works well pleased overall. Would buy again.
Mrs Darren Holmes (verified owner) –
Its OK works well pleased overall. Happy with it. ref 74
Mr Molly Kennedy (verified owner) –
Good fit works well pleased overall. Would recommend.
Rhys Jones (verified owner) –
in use works well pleased overall. Pleased overall. ref 76
Happyyp8 –
Works OK.
Freya Lawrence-Chowdhury (verified owner) –
Postage bags
Carmen Mara Lpez Martnez –
Lovely.
Mr W. Baker (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Mr W. Baker (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Dr E. X. Foster –
Does the job lovely , but dispatch notice came quite late.
Anaya R. Desai –
Excellent works a treat works as intended. Good experience overall.
Tariq P. Banerjee (verified owner) –
Hottub. works well pleased overall. Would recommend.
Manpreet Ward (verified owner) –
perfecta works well pleased overall. Pleased overall.
Manpreet Ward (verified owner) –
perfecta works well pleased overall. Pleased overall.
Isha Edwards-Banerjee (verified owner) –
So the job well works well pleased overall. Would buy again.
Dr Q. P. Macleod –
Really impressed, 6×500 size works a treat. Would buy again.
Karen Pierce (verified owner) –
Its OK
Mrs Y. Fleming –
in use works well pleased overall. Pleased overall. ref 76
Mr Gavin Brar –
Spot on does the job. Great results. Arrived quickly.
Stephen Bessey (verified owner) –
in use
Mrs Connor O. Cunningham (verified owner) –
Lovely. works well pleased overall. Would buy again.
Mrs Connor O. Cunningham (verified owner) –
Lovely. works well pleased overall. Would buy again.
Mr Musa B. MacLeod (verified owner) –
perfecta
U. V. Patel –
in use
Rob ‘Roboncé’ Lamont (verified owner) –
Nothing
Ms Kevin Richards (verified owner) –
Item is fine thanks , though it got stuck in the system for days.
Mr Erin Cameron –
Five star, 500g pack pro grade performance quick and effective. Does the job.
Dr Kai Fisher –
Works ok very effective solid outcome. All as described.
Emma Siddiqui (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Miss Kavya E. Cameron –
Good fit works well pleased overall. Would recommend.
Lucy Y. Lee (verified owner) –
Nix
HaLo (verified owner) –
perfecta
Usman Cooper-Parker –
Fitted sheet works well pleased overall. Pleased overall. ref 73
X. C. Fleming (verified owner) –
Really good works well, great value worth it. Pleased overall.
X. C. Fleming (verified owner) –
Really good works well, great value worth it. Pleased overall.
Mr Navya Armstrong –
Very impressed easy to fit. Works every time. Would recommend.
Ryan Cole (verified owner) –
So the job well
Mrs Tom M. Fleming –
Solid product, pro grade performance 500g pack. Does the job.
Dr Imran Clark (verified owner) –
Nix works well pleased overall. Happy with it. Happy with it.
Miss Rohan Williams –
Perfect does the job works every time. Well packed.
Dr G. Richards –
Easy life
Emma K. Gupta-O’Connor (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Emma K. Gupta-O’Connor (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Mr Vikram B. Morgan –
Fine overall, though it took ages to get a response this delivery. All sorted after a follow up.
Dr A. N. Ali (verified owner) –
Patio
Kian M. Bailey-Roberts (verified owner) –
Very happy, 500g pack, strong performance Does the job.
Ms Priya E. Jones –
Lovely good quality job done 500g . Good experience overall.
Mrs Owen Price-Wilson (verified owner) –
perfecta works well pleased overall. Pleased overall.
Ria Akhtar (verified owner) –
Nix works well pleased overall. Pleased overall. Would buy again.
Ms Mason Martin (verified owner) –
Its OK works well pleased overall. Happy with it. ref 74
Usman Martin –
Great blind works well pleased overall. Pleased overall.
Ravi O’Connor –
Nothing works well pleased overall. Pleased overall.
Mrs B. Y. MacLeod –
Thanks works well pleased overall. Would buy again.
Aidan X. MacDonald-Cole (verified owner) –
Good fit
Mark J. Watson (verified owner) –
Good choice no fuss to use great results. Would recommend.
Dr V. Gill –
So the job well works well pleased overall. Would buy again.
Miss Dev Allen (verified owner) –
Superb easy to use. Exactly as described. Arrived quickly.
Nathan Holmes (verified owner) –
Its OK works well pleased overall. Happy with it. ref 58
Joseph Gallagher –
Fine overall, though I waited a while for a reply this time. Sorted after a couple of emails.
Ms Amrit G. Macleod –
Nix
Miss Ben Harper (verified owner) –
Superb easy to use. Exactly as described. Arrived quickly.
Ms James Z. Bennett (verified owner) –
Parffait
Ms Peter Ahmed (verified owner) –
Regular works well pleased overall. Would buy again.
Mrs Orla Reddy –
Solid product, pro grade performance 500g pack quick and effective. Will reorder.
Ms H. V. Nair (verified owner) –
Really impressed, pro grade performance with 500g pack, strong performance. Does the job.
Miss David Hawkins-Cox (verified owner) –
Its OK works well pleased overall. Happy with it. ref 58
Mrs Joseph R. Cook (verified owner) –
Toll works well pleased overall. Would recommend. ref 83
Dr Paul W. Armstrong (verified owner) –
Spot on does the job. Great results. Arrived quickly.
Dr Angus Byrne (verified owner) –
Nix works well pleased overall. Pleased overall. Would buy again.
Mr Helena Foster –
So pleased performed well meets expectations. Arrived quickly.
Dr Louise Evans –
Postage bags works well pleased overall. Happy with it.
Mrs Adrian Bennett (verified owner) –
Great blind
Mr Huda Johnson-Reed (verified owner) –
Really good works well, great value worth it. Pleased overall.
Nigel Parker (verified owner) –
Quality feels premium; made balancing the water much easier.
Brodie Uddin-Reilly –
Nix works well pleased overall. Happy with it. Happy with it.
Brodie Uddin-Reilly –
Nix works well pleased overall. Happy with it. Happy with it.
Dr Kiran F. Akhtar (verified owner) –
Easy to use, results were quick.
Amrit I. Crawford-Brown –
Regular works well pleased overall. Would buy again.
Amrit I. Crawford-Brown –
Regular works well pleased overall. Would buy again.
Miss Colin P. Gibson-Ali –
Fitted sheet
Jessica X. Douglas (verified owner) –
Packed well, no leaks at all.
M. K. Nair –
Shipping was super quick – worth the price and works as described…
Grant Lloyd (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Mr Evie Ward (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Miss Harvey C. Hill –
Hottub.
Mrs Hugh Uddin (verified owner) –
Postage bags works well pleased overall. Happy with it.
Mr Tom Kaur (verified owner) –
Thanks works well pleased overall. Would buy again.
Anna Cook-Chandra –
perfecta works well pleased overall. Pleased overall.
Dr Rhys T. Phillips (verified owner) –
Lovely. works well pleased overall. Happy with it.
Miss Fiona Bhat (verified owner) –
Recieved it quickly; packaging!! was solid – Made balancing the water much easier!!
Mr Jessica X. Harrison –
Support replied fast, very helpful.
Ms Nathan Gallagher –
Patio works well pleased overall. Would recommend. ref 70
Ms Bonnie V. O’Brien –
Regular
A. S. Foster –
So pleased, 6×500 size, easy to use Will reorder. Easy to use.
Jas Holmes –
Thanks
Amit L. Wood (verified owner) –
Customer service was spot on – worth the price, simple to dose!
Alfie Hawkins (verified owner) –
Works OK.
B. Y. Martin (verified owner) –
Packed well, arrived in perfect nick in spa.
F. X. Fleming –
Turned up sooner than expected – Made balancing the water much easier
Dr Murray Cunningham (verified owner) –
Lovely.
Rowan Gray (verified owner) –
perfecta works well pleased overall. Pleased overall.
Amit Cox –
Great buy, 500g pack pro grade performance looks premium. Would buy again.
Omar Foster –
Five star, 6×500 size with pro grade performance, strong performance. Great value.
Mrs Rowan Parker (verified owner) –
Fast delivery, no issues at all.
Mr Reuben J. Spencer –
Good quality stuff, will buy again.
Ms Finlay Morgan (verified owner) –
Very good really works, reliable results happy with it.
Kabir T. Howard-Armstrong (verified owner) –
Quick delivery, water looked clearer.
Mr Hayley Rahman –
Very happy, 500g pack with pro grade performance, strong performance. Will reorder.
Mrs N. L. Bhat (verified owner) –
Great buy, 500g pack feels built to last. Will reorder.
Miss Iain Kelly (verified owner) –
The feels well made, good value for money and easy to get right first time.
Kirk Das (verified owner) –
Nothing works well pleased overall. Would recommend.
Kirk Das (verified owner) –
Nothing works well pleased overall. Would recommend.
Aidan C. Cooper (verified owner) –
The build quality is solid – Made balancing the water much easier
Skye Chowdhury –
Shipping was super quick, packaging* was solid, well packed…
Dr B. Spencer (verified owner) –
The feels well made, made the spa water sparkle fast!!
Murray E. Price-Gray (verified owner) –
Lovely. works well pleased overall. Happy with it.
Dr Benjamin Haque-Hamilton –
Toll
Ms Neha Evans –
Nothing
Naveen Cameron-Griffiths –
Good product, works really well.
Mr Priya V. Brennan –
Cheap and cheerful
Mr R. M. Reilly (verified owner) –
Decent buy
Ms Kiran Fraser-Henderson (verified owner) –
Very impressed easy to fit. Works every time. Would recommend.
Toby P. Kapoor –
Arrived next day, great quality.
Mr P. V. Russell (verified owner) –
Quality feels premium; instructions were clear – Made balancing the water much easier!
Yusuf Boyle (verified owner) –
Quality is spot on, will reorder.
Jessica Gibson-Patel –
Very happy, pro grade performance 500g pack strong performance. Would buy again.
Eleanor I. Khan –
Fitted sheet works well pleased overall. Pleased overall. ref 73
Daisy Chowdhury –
So pleased, pro grade performance with 500g pack, strong performance. Great value.
Mr Sukhwinder V. Lee –
Parffait works well pleased overall. Would recommend.
Anaya T. Banerjee (verified owner) –
Very good really works, reliable results happy with it.