Description
Welcome to the world of Deep Blue Pro 500g Spa Hardness Plus, your comprehensive solution for maintaining the optimal calcium hardness in your spa water. If you’ve been facing challenges in balancing the calcium hardness levels, worry no more, as Deep Blue Pro Hardness Plus is here to assist you.
Calcium hardness, also referred to as total hardness, is a critical factor in determining the overall quality of your spa water. It indicates the hardness or softness of the water, influenced by mineral salts, primarily calcium, dissolved within it. The hardness of water can vary based on the source location, with different regions exhibiting distinct levels of hardness.
Maintaining the correct calcium hardness is crucial to prevent various issues associated with imbalanced water conditions. Insufficient hardness can lead to corrosive water, surface etching, and foam formation, while excessive hardness may cause scale buildup, filter calcification, cloudy water, and staining, all of which can detract from your spa experience.
Deep Blue Pro 500g Spa Hardness Plus offers precise dosage recommendations tailored to address different hardness levels. Whether you need to raise the hardness by specific increments or keep it within the desired range, this product provides a straightforward and efficient solution.
For example, to elevate the hardness by 10mg/l in 1,000 liters of water, you would require 15g of Hardness Plus. In cases where a more substantial adjustment is needed, such as increasing the hardness by 50mg/l, 76g of Hardness Plus should be added. These clear dosage instructions enable you to customize the treatment according to your spa’s specific requirements.
In situations where the calcium hardness in your spa water exceeds 200mg/l, Deep Blue Pro ScaleAway can help prevent scale deposits within the filter, heater, pipework, and spa surfaces. This complementary product ensures that even in high-hardness conditions, your spa remains free from the harmful effects of scale accumulation.
If hardness reduction is necessary, Deep Blue Pro ScaleAway provides a simple solution. With just 25ml of ScaleAway required to decrease hardness in 1,000 liters of water, this product streamlines the process of restoring your water to the optimal hardness levels. Regular application at recommended intervals facilitates a gradual return to the desired hardness range.
By selecting Deep Blue Pro 500g Spa Hardness Plus and ScaleAway, you’re not just investing in water treatment solutions; you’re investing in the durability and efficiency of your spa. Bid farewell to concerns about incorrect hardness levels and usher in a world of balanced, sparkling water that elevates 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 products. Trust a brand that prioritizes quality, efficacy, and customer contentment, ensuring that your spa water remains inviting and pristine every time you indulge.
Embrace the effectiveness of Deep Blue Pro products and encounter a new benchmark in spa water maintenance. Your path to perfectly balanced water commences here. Dive into a rejuvenated spa experience supported by the expertise and dependability of Deep Blue Pro.
Manufacturer’s Description: Deep Blue Pro 500g Spa Hardness Plus – If the calcium hardness of your spa water is below 100mg/l, it should be increased using Deep Blue Pro Hardness Plus.
Calcium Hardness: Calcium hardness, or total hardness, denotes the water’s hardness level. This value varies based on the water source, with differences observed in regions like Scotland and South Wales, where water can be very soft, and the South East, where it tends to be harder. The hardness is determined by the concentration of mineral salts, primarily calcium, dissolved in the water.
Problems Associated with Incorrect Calcium Hardness Levels: Low hardness can lead to corrosive water, surface etching, and foam, while high hardness may cause scale formation, filter calcification, cloudy water, and staining.
Ideal Ranges: Low calcium hardness should be less than 100mg/l, while high calcium hardness is considered to be above 200mg/l. If your spa water’s calcium hardness is below 100mg/l, Deep Blue Pro Hardness Plus is the recommended solution.
Dose Rates: To increase hardness by 10mg/l in 1,000 liters, 15g of Hardness Plus is required. For a 25mg/l increase, 38g is needed, and for a 50mg/l increase, 76g should be added. For calcium hardness exceeding 200mg/l, Deep Blue Pro ScaleAway should be used to prevent scale deposits.
Dose Rates for Reduction: To lower hardness in 1,000 liters, 25ml of ScaleAway is needed, with repeated applications every 24 hours until levels normalize.







Mrs Amina Desai –
Its OK works well pleased overall. Happy with it. ref 74
Mr Aamir Henderson (verified owner) –
Lovely. works well pleased overall. Happy with it.
Andrew Doyle (verified owner) –
So the job well
Jacob S. Graham (verified owner) –
Disappointing good performance, did the job would avoid.
Miss Arjun G. Harper –
Spot on does the job. Great results. Arrived quickly.
Mr Evelyn H. Desai (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Mr Evelyn H. Desai (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Niall Bhat –
Decent buy works well pleased overall. Pleased overall.
Mrs Callum Marshall (verified owner) –
Spot on does the job. Great results. Arrived quickly.
Benjamin Gibson (verified owner) –
Easy life
Mr Martin S. Cook –
Good fit works well pleased overall. Would recommend.
Ms Sajid Fraser –
Easy life works well pleased overall. Would recommend.
Mr Adam O. Mehta (verified owner) –
Thanks
Miss Finlay P. Watson-Ryan (verified owner) –
perfecta works well pleased overall. Pleased overall.
Dr Manpreet G. Stewart –
Lovely good quality job done 500g . Good experience overall.
Miss Logan Das (verified owner) –
Postage bags works well pleased overall. Happy with it.
Amir C. Akhtar (verified owner) –
Solid product, pro grade performance 500g pack quick and effective. Will reorder.
Jordan J. Watson –
Five star, 500g pack does the job fast. Would buy again.
R. D. Griffiths (verified owner) –
in use
Miss Neel Taylor –
Cheap and cheerful
Ms Meera D. Iyer –
Really good works well, great value worth it. Pleased overall.
Ms Meera D. Iyer –
Really good works well, great value worth it. Pleased overall.
Ms Nigel R. Fleming (verified owner) –
Great buy, 500g pack feels built to last. Will reorder.
Mr Evie Green (verified owner) –
Does the job lovely , but dispatch notice came quite late.
Miss Grace C. Shaw –
Five star, 6×500 size with pro grade performance, strong performance. Great value.
Mrs Jayden Smith-Phillips (verified owner) –
So pleased, 500g pack pro grade performance reliable quality. Will reorder.
Poppy Bishop-Iqbal (verified owner) –
Nix works well pleased overall. Happy with it. Happy with it.
Poppy Bishop-Iqbal (verified owner) –
Nix works well pleased overall. Happy with it. Happy with it.
Mr Aidan G. Douglas (verified owner) –
Nothing works well pleased overall. Pleased overall.
Mrs Fatima Martin –
Item is fine thanks , though it got stuck in the system for days.
Ms Isaac S. King –
Thanks works well pleased overall. Would buy again.
Ms Isaac S. King –
Thanks works well pleased overall. Would buy again.
Cristiano B. –
Lovely.
Mrs Gurleen Phillips –
So the job well works well pleased overall. Would buy again.
Ellis Howard –
Fitted sheet works well pleased overall. Pleased overall. ref 73
Edward Cox (verified owner) –
Toll
Ms Rhys MacLeod-Chapman –
Nothing works well pleased overall. Pleased overall.
Dr S. W. Cole –
Parffait
D. K. Rahman (verified owner) –
perfecta works well pleased overall. Pleased overall.
R. U. McKenzie –
Patio works well pleased overall. Would recommend. ref 70
Mr Huda X. Palmer –
Nothing works well pleased overall. Would recommend.
Mr Bilal C. Gill (verified owner) –
Really impressed, 6×500 size works a treat. Would buy again.
Ms Sebastian Chowdhury-Foster (verified owner) –
Lovely. works well pleased overall. Would buy again.
Ms Jas Fraser –
Fine overall, though it took ages to get a response this delivery. All sorted after a follow up.
Mrs Ismail K. Lawrence –
Regular works well pleased overall. Would buy again.
WF –
Works OK.
Christin Müller (verified owner) –
perfecta
Dr Fiona Baker (verified owner) –
perfecta works well pleased overall. Pleased overall.
Dr Fiona Baker (verified owner) –
perfecta works well pleased overall. Pleased overall.
trev p –
in use
Jacob Begum –
Lovely. works well pleased overall. Would buy again.
Jacob Begum –
Lovely. works well pleased overall. Would buy again.
Neha Bailey (verified owner) –
Works OK.
Gareth L. Spencer (verified owner) –
Regular
Aria MacLeod (verified owner) –
Good choice no fuss to use great results. Would recommend.
Meera O. Johnstone (verified owner) –
Solid product, pro grade performance 500g pack. Does the job.
MDR –
Thanks
Archie Mahmood (verified owner) –
Good fit
D. Smith (verified owner) –
Nix
Dr Aaron Morgan (verified owner) –
Superb easy to use. Exactly as described. Arrived quickly.
LucyfurrSunshine –
Its OK
J. Brown (verified owner) –
So pleased performed well meets expectations. Arrived quickly.
Mrs Ellis Malik –
Easy life works well pleased overall. Would recommend.
Mrs Ravi Kennedy –
Postage bags
Peter Griffiths-Crawford (verified owner) –
Works ok very effective solid outcome. All as described.
Mr Francesca Richards (verified owner) –
Useless by all means
Angelo roseo (verified owner) –
Nothing
Mrs Harpreet Richards (verified owner) –
Decent buy
Mr Jacob Parker –
Very impressed easy to fit. Works every time. Would recommend.
Nigel Howes (verified owner) –
Parffait
Dr Mia Iyer (verified owner) –
Regular works well pleased overall. Would buy again.
Dr Mia Iyer (verified owner) –
Regular works well pleased overall. Would buy again.
Dr Euan Phillips –
Good fit works well pleased overall. Would recommend.
Beatrice Iqbal –
Toll works well pleased overall. Would recommend. ref 83
HikerEd (verified owner) –
Toll
Aidan Chandra-Harrison –
Love it, pro grade performance with 6×500 size, feels built to last. Will reorder.
Mr C. T. Hamilton-Chapman –
Superb easy to use. Exactly as described. Arrived quickly.
X. L. Armstrong –
So pleased, pro grade performance with 500g pack, strong performance. Great value.
Dr Murray Begum –
Toll works well pleased overall. Would recommend. ref 83
Dr Elizabeth C. White –
Nix works well pleased overall. Pleased overall. Would buy again.
Zara Baker (verified owner) –
Thanks works well pleased overall. Would buy again.
Dr Kabir Clark-Gallagher –
Parffait works well pleased overall. Would recommend.
Ruby N. Ryan –
Lovely. works well pleased overall. Happy with it.
Miss L. X. Nair-Das –
Fine overall, however tracking updates were limited this time. Fine once it turned up.
W. W. Lee-Taylor –
Nix works well pleased overall. Pleased overall. Would buy again.
Adam E. Evans (verified owner) –
Hottub. works well pleased overall. Would recommend.
Gareth A. Cole –
Nothing
U. B. Kennedy –
So the job well works well pleased overall. Would buy again.
Dr M. W. Cameron –
Fine overall, though I waited a while for a reply this time. Sorted after a couple of emails.
Rhys Anderson –
in use works well pleased overall. Pleased overall. ref 76
Claire Z. Shaw –
Disappointing good performance, did the job would avoid.
Abigail Henderson –
Lovely.
Mr Niamh Douglas –
Patio
Charlie G. Dhillon –
Thanks works well pleased overall. Would buy again.
Dr John D. Kapoor –
Very happy, 500g pack, strong performance Does the job.
Leah Morgan-Wright –
Its OK works well pleased overall. Happy with it. ref 58
Isaac V. Chandra –
Thanks works well pleased overall. Would buy again.
Dr Ayaan Mehta (verified owner) –
perfecta
Ms Scott Martin (verified owner) –
Cheap and cheerful works well pleased Happy with it. ref 89
Leah X. Lloyd –
Great blind works well pleased overall. Pleased overall.
Hafsa Gray –
Hottub.
Ms Leah Davies (verified owner) –
Great blind
Mr Asha Banerjee (verified owner) –
Fitted sheet works well pleased overall. Pleased overall. ref 73
Miss Meera A. Jones (verified owner) –
Very good really works, reliable results happy with it.
Dr P. C. Macleod (verified owner) –
They answered my question fast, made balancing the water much easier
Leah Chapman –
Highly pleased works well solid outcome. Quick delivery.
Miss Jack E. Chapman –
Got a quick reply from support, boxed nicely; a little goes a long way!
A. Z. Cunningham (verified owner) –
The great product quality, everything was secure in the box!
Priya G. Rahman (verified owner) –
Its OK works well pleased overall. Happy with it. ref 74
Miss Murdo Graham –
Quick delivery; instructions were clear; saved me time and hassle!!
Miss Eilidh Stewart (verified owner) –
Cheap and cheerful works well pleased Happy with it. ref 89
Florence Harper –
Easy to use, results were quick.
Miss Douglas Richards –
perfecta works well pleased overall. Pleased overall.
Ms Omar Lawrence (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Ms Bethany Patel –
Very impressed easy to fit. Works every time. Would recommend.
Ms Hamish Doyle –
Great service, order was spot on.
Mrs Emma Marshall-Iyer (verified owner) –
Fast dispatch – The! proper pro-grade stuff; sealed properly!!
Miss Grant Reynolds (verified owner) –
Nix
Ms Q. Mehta –
Arrived next day, great quality.
Chantelle Gray –
Arrived fast, good quality product.
Mrs Freddie E. Price (verified owner) –
Great blind works well pleased overall. Pleased overall.
Matthew Banerjee –
Nothing works well pleased overall. Would recommend.
Matthew Banerjee –
Nothing works well pleased overall. Would recommend.
Dr Gurleen Z. Parker (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Dr Francesca C. Gupta (verified owner) –
Five star, 500g pack pro grade performance quick and effective. Does the job.
Miss Eleanor I. Harper –
Great buy, 500g pack pro grade performance looks premium. Would buy again.
Zachary R. Edwards –
The feels well made; they answered* my question fast!
Joshua Bennett-Hughes (verified owner) –
Support replied quickly, no leaks at all, packaging was solid…
Dr Priya S. Lawrence (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Dr Priya S. Lawrence (verified owner) –
in use works well pleased overall. Happy with it. ref 60
Dr Olivia Allen (verified owner) –
Very good really works, reliable results happy with it.
Mrs Rowan Evans –
Excellent works a treat works as intended. Good experience overall.
Mrs Manpreet Russell –
The build quality is solid – straightforward to apply!!
Alex Marshall –
Its OK
Graham F. Holmes (verified owner) –
Packed well, no leaks at all.
Jessica F. Harper –
Customer service was spot on – Made balancing the water much easier!!
Ms Adrian Kapoor –
Very happy, 500g pack with pro grade performance, strong performance. Will reorder.
Seamus Jones-Pearson –
Parffait works well pleased overall. Would recommend.
Ms Elizabeth X. Hall (verified owner) –
So pleased, 6×500 size, easy to use Will reorder. Easy to use.
Luke Ryan –
Good value and easy to use.
Ms Ellis Sharma (verified owner) –
Hottub. works well pleased overall. Would recommend.
Dr Charlie MacLeod –
in use works well pleased overall. Pleased overall. ref 76
Aaron Price –
Very happy, pro grade performance 500g pack strong performance. Would buy again.
Mrs Mason King –
Its OK works well pleased overall. Happy with it. ref 58
Eoin X. Uddin (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Eoin X. Uddin (verified owner) –
Toll works well pleased overall. Happy with it. Would buy again.
Gareth Webb –
Happy customer, would recommend.
C. E. Sinclair (verified owner) –
Does what it says, happy with it.
Dr Kavya O’Connor (verified owner) –
Fast dispatch, saved me time and hassle, made balancing the water much easier!
Mrs Stephen Z. Cox (verified owner) –
Fast delivery, no issues at all in spa.
Mr Y. McKenzie –
Really good works well, great value worth it. Pleased overall.
Ms Rebecca Henderson-Wood –
Really impressed, pro grade performance with 500g pack, strong performance. Does the job.
Sam Boyle –
Fitted sheet
Rowena E. Brown-Reynolds (verified owner) –
Postage bags works well pleased overall. Happy with it.
V. Bennett (verified owner) –
Packed well, arrvied in perfect nick.
Dr Anwar T. Bailey (verified owner) –
Parffait works well pleased overall. Happy with it. ref 63
Lauren Thompson –
Works brilliantly, pro grade performance with 500g pack, strong performance. Would buy again.
Ms Grant Gray –
Decent buy works well pleased overall. Pleased overall.
Navya Scott –
Nix works well pleased overall. Happy with it. Happy with it.
Ms N. F. Richards (verified owner) –
Patio works well pleased overall. Would recommend. ref 70
Ms Stephen Wood (verified owner) –
Perfect does the job works every time. Well packed.
Isobel Morgan –
Works ok very effective solid outcome. All as described.