Description
Ensure the safety and cleanliness of your hot tub or swimming pool with these highly effective chlorine tablets. Designed to keep your water free from harmful bacteria, these stabilised tablets are a popular choice among pool and spa owners.
With a slow-release formula that lasts between 2 to 4 days, these tablets provide a consistent level of chlorine, ensuring optimal water quality. They are specially formulated to minimize chlorine loss due to sunlight exposure, making them ideal for outdoor pools and spas.
These versatile tablets can be used in floating dispensers, chemical feeds, and skimmer baskets, offering convenience and flexibility in application. Whether you have a hot tub or a swimming pool, these tablets are suitable for maintaining the recommended free chlorine levels.
For hot tubs, it is recommended to maintain a free chlorine range of 3 to 5 mg/l, while swimming pools should aim for 1 to 3 mg/l. These stabilised chlorine tablets help achieve and maintain these levels, ensuring that your water remains safe and hygienic for all users.
Key Features:
These tablets are specifically designed for regular dosing of hot tubs and swimming pools, providing free active chlorine that effectively eliminates bacteria and harmful organisms. They contain a high level of available chlorine and a stabiliser to maintain water quality.
Application Instructions:
1. Maintain the pH level within the range of 7.2 to 7.6 for optimal results. Use pH plus or pH minus products if necessary to adjust the pH level.
2. Keep free chlorine residuals at the recommended levels for hot tubs and swimming pools. Newly filled hot tubs may require an initial shock dose of chlorine to establish the proper chlorine level.
3. When using a floating dispenser, adjust the tablet quantity to achieve the desired chlorine range. For chlorine feeders and skimmer baskets, follow the specific instructions to maintain chlorine levels effectively.
4. Periodically shock dose your pool to eliminate any excess contamination, especially after heavy use or every few weeks.
5. Dose Rates:
– For a medium hot tub with 1,000 liters of water, use approximately 1 tablet to increase chlorine levels by 1 mg/l or 3 tablets to increase by 3 mg/l.
– For a large hot tub with 1,500 liters of water, use 2 tablets to increase chlorine levels by 1 mg/l or 6 tablets for a 3 mg/l increase.
– For swimming pools, add 1 tablet per 4,500 liters of water and monitor levels regularly to maintain adequate chlorine levels.
These chlorine tablets are a reliable and efficient solution for keeping your hot tub or swimming pool water clean and safe. With their long-lasting formula and easy application, you can enjoy crystal-clear water without worrying about bacteria or contaminants. Trust these stabilised chlorine tablets to maintain the perfect balance of chlorine in your water, providing a refreshing and hygienic experience every time you take a dip.
Manufacturers description:
These chlorine tablets are one of the most popular products for ensuring hot tub and swimming pool water is safe and bacteria free. They are stabilised to minimise chlorine loss to sunlight. They slowly release chlorine over 2–4 days depending on the water flowing over them.
They can be used in floating dispensers, chemical feeds and skimmer baskets.
Apply regularly to achieve the recommended free chlorine level of 3-5 mg/l (ppm) for hot tubs or 1-3 mg/l (ppm) for swimming pools. These tablets are slow release and long lasting and have the minimum effect on the pH of the water for a stabilised chlorine tablet.
These will be sent in multiples of smaller tubs, from 1Kg to 10Kg tubs.
Key Features
Its best to operate a free Chlorine Range of 3 – 5mg/l for hot tubs and 1-3mg/l for swimming pools. These stabilised chlorine tablets are ideal for regular dosing of your hot tub or swimming pool, to produce free active chlorine which kills bacteria and other potentially harmful organisms. They contain a high level of available chlorine and chlorine stabiliser.
Application Instructions
1. Maintain pH level within the ideal range of 7.2 – 7.6. If outside this range please use our PH plus or PH minus products to adjust for the best results.
2. Maintain free chlorine residuals for hot tubs between 3-5mg/l and for swimming pools between 1 – 3mg/l (ppm). Freshly filled hot tubs require an initial shock or start up dose of chlorine: 50mg/l (ppm) for 1 hour or 20mg/l (ppm) for 2 hours.
3. For floating dispenser: Fill the floating dispenser with tablets and adjust the aperture mechanism at the bottom of the dispenser to obtain the 3-5mg/l (ppm) desired range. Alternatively keep the dispenser aperture constant and vary the tablets inside to achieve 3-5mg/l (ppm). The dispenser should be removed from the hot tub whilst bathing.
4. For chlorine feeders: Fill the dispenser and follow feeder instruction manuals on flow regulation to maintain required chlorine levels.
5. For skimmer baskets: Fill the basket with sufficient tablets and monitor levels to maintain required chlorine levels.
6. It is recommended that you periodically (e.g. fortnightly or after heavy use) shock dose your pool to eliminate any excess contamination.
Note: If using in skimmer baskets we would suggest you run the pump often to prevent a build up of chlorine. Please ensure children to not have access to the skimmer as this could be dangerous.
Dose Rates (subject to water flow rate and temperature)
Medium hot tub 1,000 litre (220 Gallons) of water requires approx 1 tablet to increase the chlorine level by 1mg/l (ppm) or 3 tablets to increase chlorine level by 3mg/l(ppm)
Large hot tub 1,500 litre (330 Gallons) of water requires approx 2 tablets to increase the chlorine level by 1mg/l (ppm) or 6 tablets to increase chlorine level by 3mg/l(ppm)
Swimming pools add 1 tablet per 4,500 litres (1000 Gallons) of water and monitor levels.
Stock note: In an effort to provide the quickest possible delivery for our customers we may ship an alternative premium branded product if stocks are low.? These brands will only be Blue Horizons, Deep Blue Pro, Relax or Swim Fresh, all established for a long time in the water treatment industry.




Dr Hannah Johnson –
Held free chlorine consistent for days with no, customer service was ace
Jai Gibson-Hawkins –
Maintained free chlorine consistent without fuss – no mess in the box
Miss Freddie Iqbal –
Kept chlorine steady day to day without crumbling; feels premium
Sam Gupta-Jackson –
Kept up chlorine steady nicely with no residue • delivered quick
Dr Sofia Harrison –
Stayed levels steady for days without crumbling, properly sealed
T. Q. McCarthy (verified owner) –
Stayed sanitiser stable all week – no crumbs, great packaging
Miss Reuben Macleod (verified owner) –
Maintained levels steady for days – no crumbs; arrived sooner than expected
Joseph Z. Reed (verified owner) –
Maintained free chlorine steady nicely, nice sturdy tub
Ms Declan Brar (verified owner) –
Stayed levels stable for days – delivery was spot on
Mr Y. W. Wright (verified owner) –
Kept up chlorine consistent without fuss, arrived sooner than expected
Alfie Green –
Stayed levels steady day to day with no residue • quick advice from support
Alfie Green –
Stayed levels steady day to day with no residue • quick advice from support
Alfie Green –
Stayed levels steady day to day with no residue • quick advice from support
Alfie Green –
Stayed levels steady day to day with no residue • quick advice from support
A. Y. Sinclair –
Kept levels consistent all week • nice sturdy tub
Dr Martin T. Malik (verified owner) –
Kept sanitiser stable for days, clean and tidy pack | sealed properly
Ms Amir Y. Ross –
Stayed chlorine consistent nicely | fast delivery
Mr Julia Chowdhury (verified owner) –
Stayed levels steady without fuss without crumbling; fresh stock
Mrs Emily McLean (verified owner) –
Held free chlorine on point nicely with no residue, label is clear
Archie R. Lawrence –
Maintained free chlorine consistent for days – post was rapid
Dr Liam Sandhu –
Kept up chlorine consistent day to day without, packaging was solid
Mr Georgia Stewart –
Kept up chlorine on point without fuss – no, helpful customer service
Mrs Chantelle Phillips –
Held free chlorine stable without fuss; no leaks • delivery was spot on
Miss Aidan Mason (verified owner) –
Kept levels consistent for days; came in 2 days
Gurleen U. Doyle (verified owner) –
Kept sanitiser consistent all week with no residue, dropped through quickly
Eilidh Jackson –
Kept up levels on point day to day without crumbling • well packed
Rahul Khan (verified owner) –
Kept free chlorine steady nicely; fresh stock, would reorder
Miss I. R. Watson (verified owner) –
Maintained free chlorine on point nicely • no delays at all
Miss I. R. Watson (verified owner) –
Maintained free chlorine on point nicely • no delays at all
Miss I. R. Watson (verified owner) –
Maintained free chlorine on point nicely • no delays at all
Aamir Ali –
Kept up chlorine on point without fuss with no residue, turned up fast
Benjamin F. Robertson (verified owner) –
Stayed levels steady day to day with no residue – clean and tidy pack
Mr Phoebe D. Harrison-Kelly –
Kept chlorine steady nicely with no residue – sealed properly
Matthew A. Gibson –
Held sanitiser stable without fuss with no residue | well packed
Matthew A. Gibson –
Held sanitiser stable without fuss with no residue | well packed
Matthew A. Gibson –
Held sanitiser stable without fuss with no residue | well packed
Teddy N. Hamilton –
Kept up sanitiser on point for days • feels premium
Teddy N. Hamilton –
Kept up sanitiser on point for days • feels premium
Teddy N. Hamilton –
Kept up sanitiser on point for days • feels premium
Teddy N. Hamilton –
Kept up sanitiser on point for days • feels premium
Mr H. Douglas-McKenzie (verified owner) –
Kept sanitiser steady without fuss – no crumbs | fresh stock
Dr Sara N. Anderson –
Kept up free chlorine steady without fuss without, customer service was ace
Haris Wilson –
Stayed sanitiser consistent day to day – no crumbs | came the next day
Mr Lauren Hill-Marshall (verified owner) –
Held sanitiser on point all week with no residue, came in 2 days
Theo Wilson-Ali (verified owner) –
Maintained sanitiser on point day to day with no, delivery was spot on
Dr Ayaan Y. Campbell –
Stayed sanitiser on point for days • dropped through quickly, no issues
Mr Matilda Q. Gallagher –
Stayed sanitiser on point for days • sent out same day
Miss Sanjay P. Hamilton –
Held chlorine consistent all week without crumbling; turned up fast
Mr Alistair Ross-Wright (verified owner) –
Held sanitiser consistent day to day with no residue, delivery was spot on
Mr Alistair Ross-Wright (verified owner) –
Held sanitiser consistent day to day with no residue, delivery was spot on
Mr Alistair Ross-Wright (verified owner) –
Held sanitiser consistent day to day with no residue, delivery was spot on
T. S. Turner –
Maintained free chlorine stable for days, came in 2 days
Miss Harpreet Watson-Kelly (verified owner) –
Stayed chlorine consistent without fuss | came in 2 days
Miss Harpreet Watson-Kelly (verified owner) –
Stayed chlorine consistent without fuss | came in 2 days
Miss Harpreet Watson-Kelly (verified owner) –
Stayed chlorine consistent without fuss | came in 2 days
Miss Harpreet Watson-Kelly (verified owner) –
Stayed chlorine consistent without fuss | came in 2 days
Miss Millie Ali –
Kept up sanitiser steady without fuss with no residue | feels premium
Douglas Crawford –
Stayed chlorine on point all week – no crumbs – good quality
Mr Leo O’Brien-Wood (verified owner) –
Kept free chlorine on point nicely with no residue; no leaks
Elizabeth H. Ali (verified owner) –
Kept up free chlorine consistent nicely – no crumbs | speedy dispatch
Miss Gurleen Z. Armstrong (verified owner) –
Stayed levels steady for days – quick turnaround
Mrs Rahul Cole –
Stayed sanitiser on point day to day, no delays at all
Mrs U. S. Bennett (verified owner) –
Kept up chlorine stable without fuss without crumbling; speedy dispatch
Dr Anaya Douglas (verified owner) –
Kept free chlorine stable for days – sent out same day
Ms Jessica N. O’Brien (verified owner) –
Kept up sanitiser stable for days – no crumbs, on time delivery
Mrs Max Boyle –
Kept chlorine on point nicely; fast delivery
Alex Cooper-Patel (verified owner) –
Held sanitiser on point day to day with no, customer service was ace
Rahul Evans (verified owner) –
Stayed levels on point nicely – no crumbs; arrived next day
Mrs Cameron Phillips (verified owner) –
Kept free chlorine stable nicely, arrived next day, clean and tidy pack
Harriet Price-Douglas (verified owner) –
Kept up sanitiser on point for days with no residue, tamper seal intact
Ella Moore –
Stayed sanitiser consistent for days with no residue, packaging was solid
Bonnie Das –
Stayed free chlorine steady all week with no residue, feels premium
Matilda P. Richards-Nair –
Held sanitiser steady for days, dropped through quickly, well packed
Hugh X. Edwards –
Held levels consistent nicely without crumbling – label is clear
Hugh X. Edwards –
Held levels consistent nicely without crumbling – label is clear
Hugh X. Edwards –
Held levels consistent nicely without crumbling – label is clear
Ms S. Q. Chandra-McKenzie –
Kept up levels stable day to day – no crumbs, fast delivery
Ms S. Q. Chandra-McKenzie –
Kept up levels stable day to day – no crumbs, fast delivery
Ms S. Q. Chandra-McKenzie –
Kept up levels stable day to day – no crumbs, fast delivery
Ms S. Q. Chandra-McKenzie –
Kept up levels stable day to day – no crumbs, fast delivery
Kiran F. Rahman –
Stayed sanitiser on point day to day, delivery was spot on
Eilidh W. Davies-Douglas (verified owner) –
Kept sanitiser on point nicely | delivery was spot on
Dr Anna P. Chandra –
Kept up sanitiser stable all week • got help quickly
Harriet Wilson –
Held sanitiser consistent without fuss without crumbling • feels premium
Miss Paige McLean (verified owner) –
Kept up sanitiser on point day to day • delivery was spot on
Ms Dev Reilly –
Kept free chlorine steady day to day • arrived next day
Ms Dev Reilly –
Kept free chlorine steady day to day • arrived next day
Ms Dev Reilly –
Kept free chlorine steady day to day • arrived next day
Ms Dev Reilly –
Kept free chlorine steady day to day • arrived next day
Katherine Gray –
Maintained chlorine consistent day to day – no crumbs, no delays at all
Dr Sarah Richards-Fraser –
Stayed free chlorine on point nicely with no residue, quick turnaround
Mr Rebecca Hill –
Kept up sanitiser on point nicely – no crumbs, on time delivery
Miss R. I. Walsh –
Kept up chlorine stable without fuss without crumbling – quick turnaround
Dr Ryan McKenzie –
Stayed levels stable for days – fast delivery
Dr Ryan McKenzie –
Stayed levels stable for days – fast delivery
Dr Ryan McKenzie –
Stayed levels stable for days – fast delivery
Dr Ryan McKenzie –
Stayed levels stable for days – fast delivery
Miss Maisie O’Connor-Watson (verified owner) –
Kept up sanitiser on point nicely; delivery was spot on
Mrs Ravi McCarthy –
Held free chlorine stable for days | helpful customer service
Miss Rebecca Ward-Smith (verified owner) –
Maintained levels steady without fuss | nice sturdy tub
Miss Zain Webb –
Maintained free chlorine steady nicely without crumbling, good aftersales
Linda Hitchcock (verified owner) –
Superior quality that never disappoints.
Lachlan G. Cooper (verified owner) –
Held free chlorine consistent nicely • delivered quick
Lachlan G. Cooper (verified owner) –
Held free chlorine consistent nicely • delivered quick
Lachlan G. Cooper (verified owner) –
Held free chlorine consistent nicely • delivered quick
Lachlan G. Cooper (verified owner) –
Held free chlorine consistent nicely • delivered quick
Mark Burchell (verified owner) –
Effortless shopping experience
Vikram Shaw (verified owner) –
Kept up free chlorine consistent day to day, good quality
Mr Paige Fraser –
Kept up sanitiser on point all week without crumbling – no leaks
Mrs Sana J. Harper (verified owner) –
Kept up chlorine on point day to day • got help quickly
Mrs Gareth James –
Stayed levels steady without fuss without crumbling • great packaging
Dr Neil H. Wood –
Kept levels steady for days • came in 2 days
Miss Y. B. Price –
Stayed chlorine stable for days • label is clear
Seamus Tobin (verified owner) –
Extremely pleased with my purchase decision
ALLAN PERRIE (verified owner) –
Precision engineering for flawless pool performance
Kun Opener –
Speedy delivery and smooth returns.
Dr Neel F. Hamilton (verified owner) –
Held levels consistent without fuss – properly sealed
Florence O’Brien –
Kept up sanitiser on point nicely with no residue, great packaging
S. O. Hall (verified owner) –
Kept up levels consistent without fuss without crumbling, came in 2 days
Dr Ellis Hunt (verified owner) –
Held sanitiser on point nicely without crumbling | great packaging
C. O. Reddy (verified owner) –
Stayed free chlorine stable for days; great packaging • good aftersales
Mrs Rosie Gupta –
Held sanitiser on point for days | nice sturdy tub • will buy again
Heather McDowell (verified owner) –
Speedy order, amazing customer care
Mrs Benjamin Cooper –
Kept chlorine stable without fuss – no crumbs; customer service was ace
jane howard (verified owner) –
Enjoy innovation and exceptional durability
Dr L. Mahmood (verified owner) –
Kept levels steady without fuss, sent out same day • will buy again
Momoko Cox (verified owner) –
Fast service, satisfied customer
Oliver Kennedy-Thompson (verified owner) –
Stayed chlorine consistent for days – no crumbs, dropped through quickly
Oliver Kennedy-Thompson (verified owner) –
Stayed chlorine consistent for days – no crumbs, dropped through quickly
Oliver Kennedy-Thompson (verified owner) –
Stayed chlorine consistent for days – no crumbs, dropped through quickly
Oliver Kennedy-Thompson (verified owner) –
Stayed chlorine consistent for days – no crumbs, dropped through quickly
Miss Penelope E. Hamilton –
Kept chlorine consistent for days; properly sealed
Suresh Davies –
Maintained levels on point nicely without crumbling, fast delivery
Oscar Macleod (verified owner) –
Held levels on point all week with no residue, great packaging
Olivia George (verified owner) –
Outstanding quality and service
Sophia McBeath –
Quality product that stands out
Ms Farhan Robertson (verified owner) –
Kept up free chlorine steady without fuss • packaging was solid • no leaks
Ms Farhan Robertson (verified owner) –
Kept up free chlorine steady without fuss • packaging was solid • no leaks
Ms Farhan Robertson (verified owner) –
Kept up free chlorine steady without fuss • packaging was solid • no leaks
Ms Farhan Robertson (verified owner) –
Kept up free chlorine steady without fuss • packaging was solid • no leaks
Miss Graham King (verified owner) –
Held levels stable all week – no crumbs • fast delivery
Mr R. X. Jones (verified owner) –
Stayed sanitiser consistent without fuss without crumbling, label is clear
Laki –
Superior design meets reliable performance
Ms Amrit D. Ross (verified owner) –
Stayed free chlorine steady without fuss; label is clear
Ms Amrit D. Ross (verified owner) –
Stayed free chlorine steady without fuss; label is clear
Ms Amrit D. Ross (verified owner) –
Stayed free chlorine steady without fuss; label is clear
Ms Amrit D. Ross (verified owner) –
Stayed free chlorine steady without fuss; label is clear
Charlie Hall –
Held levels steady without fuss without crumbling – quick turnaround
Roireana –
Hassle-free returns
Dr Stewart B. Stewart (verified owner) –
Kept chlorine stable for days • speedy dispatch
Ms Amit V. Pearson –
Held free chlorine on point all week – no crumbs | no leaks
Rosie Palmer (verified owner) –
Kept up chlorine steady all week without crumbling, dropped through quickly
Ms T. W. Bishop –
Held sanitiser stable day to day – no crumbs, good quality
Miss Ria Thompson –
Kept chlorine on point day to day – fresh stock • will buy again
Miss Ria Thompson –
Kept chlorine on point day to day – fresh stock • will buy again
Miss Ria Thompson –
Kept chlorine on point day to day – fresh stock • will buy again
Miss Ria Thompson –
Kept chlorine on point day to day – fresh stock • will buy again
Lewis S. McKenzie –
Kept up sanitiser steady day to day without crumbling; arrived next day
Lewis S. McKenzie –
Kept up sanitiser steady day to day without crumbling; arrived next day
Lewis S. McKenzie –
Kept up sanitiser steady day to day without crumbling; arrived next day
Mrs Sanjay Lloyd (verified owner) –
Kept chlorine consistent for days without crumbling, good aftersales
Mrs Samuel L. Begum (verified owner) –
Kept up sanitiser steady all week; support was helpful • no delays at all
Farhan W. Pearson (verified owner) –
Held chlorine consistent nicely – nice sturdy tub • speedy dispatch
Farhan W. Pearson (verified owner) –
Held chlorine consistent nicely – nice sturdy tub • speedy dispatch
Farhan W. Pearson (verified owner) –
Held chlorine consistent nicely – nice sturdy tub • speedy dispatch
Farhan W. Pearson (verified owner) –
Held chlorine consistent nicely – nice sturdy tub • speedy dispatch
Gemma James –
Maintained levels on point nicely, no mess in the box
Mrs Safiya R. Graham –
Kept up chlorine stable day to day with no residue – nice sturdy tub
Mrs Safiya R. Graham –
Kept up chlorine stable day to day with no residue – nice sturdy tub
Mrs Safiya R. Graham –
Kept up chlorine stable day to day with no residue – nice sturdy tub
Meera F. Ward –
Stayed chlorine stable all week – no crumbs | good quality
Mr Murray Gallagher –
Kept up levels on point all week with no residue • properly sealed
Niall Walker –
Maintained chlorine stable all week – no mess in the box
Elizabeth L. Desai-Gray (verified owner) –
Kept up chlorine consistent without fuss – no crumbs; speedy dispatch
O. Q. Kapoor –
Stayed chlorine stable nicely with no residue; turned up fast
Muhammad Reddy-MacLeod (verified owner) –
Kept sanitiser stable all week; no delays at all
C. V. Griffiths –
Held levels steady for days; sent out same day
Miss Rory Ryan (verified owner) –
Maintained levels stable for days – no crumbs • helpful on chat
Jamie S. Sinclair –
Kept chlorine consistent without fuss, got help quickly
Miss Harrison Fraser-Barnes (verified owner) –
Held levels stable nicely without crumbling | packaging was solid
Rowan T. Chowdhury –
Held free chlorine steady nicely | dropped through quickly • no issues
Phoebe Brar –
Kept up sanitiser consistent nicely • arrived next day • delivered quick
Mrs Nigel K. Thompson –
Maintained levels consistent day to day with no, packaging was solid
J. Chowdhury –
Kept sanitiser consistent nicely with no residue | sent out same day
Dr Alisha Z. Wilson (verified owner) –
Held free chlorine consistent nicely – no leaks, no issues
Carter Iqbal –
Kept levels steady day to day – support knew their stuff
Mark W. Pearson (verified owner) –
Kept sanitiser on point for days – no crumbs | dropped through quickly
Ms Sana Uddin-Armstrong –
Maintained levels steady nicely without crumbling, post was rapid
Ms Sana Uddin-Armstrong –
Maintained levels steady nicely without crumbling, post was rapid
Ms Sana Uddin-Armstrong –
Maintained levels steady nicely without crumbling, post was rapid
Ms Sana Uddin-Armstrong –
Maintained levels steady nicely without crumbling, post was rapid
Rishi R. Phillips –
Stayed chlorine stable nicely with no residue, post was rapid
Miss Hafsa Boyle (verified owner) –
Kept chlorine stable for days; no delays at all
Miss Hafsa Boyle (verified owner) –
Kept chlorine stable for days; no delays at all
Miss Hafsa Boyle (verified owner) –
Kept chlorine stable for days; no delays at all
Miss Hafsa Boyle (verified owner) –
Kept chlorine stable for days; no delays at all
Alisha Macleod –
Kept up levels steady for days – no leaks • came the next day