Clearwater CH0005 PH Plus Increaser for Swimming Pool and Spa Treatme


Easy to Follow Instructions Recommended by Some of the Leading Brands UK Brand ISO9001 Certified


Dimensions: 20.8 x 9.5 x 9.3 cm; 1 Kilograms
Model: CH0005
Part: CH0005
Manufacture: ClearWater

76 Responses

  1. Anonymous says:

     United Kingdom

    Easy to apply. Adjust amount added and use dip test to check the pH levels before adding more.

  2. Anonymous says:

     United Kingdom

    Not great value for money but does the job ok.

  3. NathaniVann says:

     United Kingdom

    Well what can you say? It increases the oh! Does the job that it is intended to do so no complaints here!

  4. Anonymous says:

     United Kingdom

    Seems to dissolve & works well reducing the ph which is what is required

  5. Anonymous says:

     United Kingdom

    good price plus twice the size of Large size starter kit bottles so winner dinner 🙂

  6. The Running Bug says:

     United Kingdom

    Need this when fixing levels in my hot tub works well

  7. Anonymous says:

     United Kingdom

    This is the best option we have used to stabilise the PH in lit hot tub

  8. WNEP Web Staff says:

     United Kingdom

    Arrived quickly and is super easy to work out how much you need with the table on the back, provided you use the pool strips beforehand that is

  9. Anonymous says:

     United Kingdom

    Put 2 teaspoons of this in a cup with some warm water from the hot tub once every 1 to 2 weeks when the PH drops.. works a treat every time.

  10. Anonymous says:

     United Kingdom

    I had struggled to get this balance right in my lazy spa, as soon as I added the clear water balance it was perfect within 4 hours. I’m really glad I bought it and there’s plenty left for next time I need it. Thank you. Lindy

  11. Anonymous says:

     United Kingdom

    This is not a fake review and I wasn’t paid to leave this! This product actually worked! I had PH at about 6.8, followed the instructions to the word and it moved upto 7.4 and is now perfect. My pool holds 2076 litres /630 gallons for reference. Well done for producing something that does what it says it will.

  12. Anonymous says:

     United Kingdom

    Recommend for an inflatable hot tub but would not recommend for a hard shell hot tub

  13. LavonSedgwick says:

     United Kingdom

    Just as described really, it’s a pretty good price & an essential item if you own a hot tub
    Takes a bit of experimenting but I add about a level tablespoon a week to our hot tub & it keeps the water ph neutral.

  14. MatthewI26 says:

     United Kingdom

    Very good value for the money, larger tub than I’d anticipated for the price

  15. Anonymous says:

     United Kingdom

    This product does what is says good quality never had a problem with clear water products.

  16. Anonymous says:

     United Kingdom

    Good value compared to shop prices, arrived quickly and essential for keeping the hot tub water balanced

  17. GeorgiaLyons says:

     United Kingdom

    Price slightly higher than other retailers, but convenient to have next day delivery.

  18. Lori Grunin says:

     United Kingdom

    Raises the PH by the required amount in my hot tub when using the table on the container as a guide to the correct proportions.

  19. ViolettBoase says:

     United Kingdom

    Will do what I need for my hot tub at a good price I think for a proven good quality.

  20. Anonymous says:

     United Kingdom

    Third time buying this is the best Ph no foaming only cristal clea

  21. Anonymous says:

     United Kingdom

    Fast delivery and good price. Decent size for using in lazy spa.

  22. Anonymous says:

     United Kingdom

    make sure you get the 50 strip package to get the best value and should last u most if not all of summe

  23. Anonymous says:

     United Kingdom

    Great for our hot tub – our water always has a low pH so this does excellent work in increasing it.

  24. KristenKell says:

     United Kingdom

    Good quality product and as long as you keep on top of your ph levels expect your hot tub to be perfect with this product.

  25. JaxonHardaway says:

     United Kingdom

    A little pricey as are most hot tub chemicals these days, but a brand I’ve used before. I have read reports of Clearwater branding third party products recently, not sure how true this is but I would buy a cheaper brand if available.

  26. Anonymous says:

     United Kingdom

    Great chemicals for our hot tub. Superb size and hopefully should last for about 6 months or so. Grea

  27. MaryjoE19gke says:

     United Kingdom

    Well presented and convenient tub used by for dosing a 5/10 mg spoonful to adjust PH levels in Hot Tub as required.

  28. Suann quotHoneybeequot Lundsberg says:

     United Kingdom

    Golden Review Award: 5 From Our UsersAfter 8-9 treatments the pH in my hot tub remains unchanged.
    The product definitely has an effect on tap water, I have tested it and the pH of a concentrated solution is significantly higher after adding than before. But my tub, sadly, remains too acidic.

    Update: appears the issue was in fact alkalinity (water hardness). Added some bicarbonate of soda to the tub and tried again. Much better results! Please can the manufacturers of the product explain this on the pack? It will help people make the right choice and save waste. Your local water authority publishes water quality information on their website, so it’s worth checking there first.

  29. Sonja49Ulwnnvz says:

     United Kingdom

    Excellent service, product well protect during sending process. Arrived on time, does the job as expected.

  30. UlrikeFong says:

     United Kingdom

    Does what it said, a bit pricey compared to usual

  31. BananaBuzzbomb says:

     United Kingdom

    Means I can now use my lazy spa, great produc

  32. LaverneG68 says:

     United Kingdom

    Bought for the hot tub and came really quickly keeps water clea

  33. Anonymous says:

     United Kingdom

    Product finally came it’s worth the wait many thanks as always Paul.

  34. Anonymous says:

     United Kingdom

    very good big tub and is the propper ph plus

  35. Anonymous says:

     United Kingdom

    For my hot tub, went to balance water and realized I was short of chemicals, didn’t know if I’d be able to get any with the current virus situation. Arrived within a few days. Thanks very much.

  36. Anonymous says:

     United Kingdom

    Superb value and great product, works great for my hot tub where pH levels always need increasing. Just a couple of small scoops a day and all good.

  37. Desiree DeNunzio says:

     United Kingdom

    Did the job for a good price. Will last for months

  38. Anonymous says:

     United Kingdom

    arrived quickly and does what it says on the tin, easy to use all good.

  39. Anonymous says:

     United Kingdom

    Great product it did the job for us to use the pool throughout the summer safely

  40. Anonymous says:

     United Kingdom

    I use this product for our hot tub. Superb value for money.

  41. DeidreTaulbee says:

     United Kingdom

    Works well. But boy need a lot for bigger pools14ft etc.

    Instructions are rubbish.. And I work on basis, per = water amount= 1ph level down.

  42. KatieIlxbbxh says:

     United Kingdom

    This item does exactly what it says on the ti

  43. Anonymous says:

     United Kingdom

    Swimming pool is clearly whole the time.Just enough use little bit Clearwater CH0005 PH plus

  44. Anonymous says:

     United Kingdom

    Stick the required amount into your hot tub and all is good, too much and you will have water problems and maybe lose your ta

  45. EltonFuentes says:

     United Kingdom

    I bought the pack with everything in for when you start a hot tub but I have nearly used all of the Ph up and this was the best value for money pack for a seller I have used before so I have stuck with them.

  46. Anonymous says:

     United Kingdom

    It took quite a lot of this to boost the pH in our pool but we hadn’t been actively working on maintaining it before this.
    Will see how good it is once we are just maintaining balance rather than building it up.

    The instructions are easy to follow but there is no mention of what effect the given amount should have on the pool’s pH. that would be a handy addition to the label.

  47. CortezAdamek says:

     United Kingdom

    We love the whole Clearwater range and never use anything else. They work perfectly.

  48. WKMPetranrpuvrf says:

     United Kingdom

    Very happy with this for use with our hot tub

  49. PamPerduehs says:

     United Kingdom

    Took me a while to get to grips with what I needed for these leave up pools. Got their in the end. This was a good price

  50. Bree Fowler says:

     United Kingdom

    Not cheap but does the job and needed for the pool

  51. Whitney says:

     United Kingdom

    Have used this product in the past and does what it says on the tin.

  52. TeresitBaine says:

     United Kingdom

    Great product that keeps our spa in tip top condition and last ages.

  53. DillonNTSC says:

     United Kingdom

    Pool water should ideally be neutral (pH circa 7). Often it becomes acidic (pH less than 7). This product can be used to bring the acidity back to acceptable levels where the other chemicals (for example chlorine treatment) work best.
    The correct dose of granules are fully dissolved in warm water before adding to the pool. Take care with the dosage, adding too much will make the pool alkaline and then you will need a pH minus type of product to correct it. Always wait until the dose is FULLY mixed in before using a test strip to check the pool pH.

  54. Anonymous says:

     United Kingdom

    It does was it says on the tub. No complaints.

  55. TomokoHoss says:

     United Kingdom

    awesome, makes keeping ontop of your pool chemicals much easier with the large packet not worrying about using too much or too little like with the starter pack.

  56. Alice Gilman says:

     United Kingdom 🇬🇧

    Not used yet as waiting for home for spa to be built but looks like a great addition.

  57. Anonymous says:

     United Kingdom

    Great Value – this can be a lot more expensive from other suppliers. Will buy agai

  58. Anonymous says:

     United Kingdom

    Very hazardous powder. Keep locked away if children about. Does what it claims to.

  59. ChelseaSimpson says:

     United Kingdom 🇬🇧

    Large pot but only 1/3 full could be in a smaller po

  60. Anonymous says:

     United Kingdom

    I bought this product to use in my 8ft pool. I used it alongside the testing strips. I found that I hardly had to use this product but when I did it sorted out the PH balance perfectly. I will be using this again next summer.

  61. PamelaEarnhardt says:

     United Kingdom

    Another Great product much needed for your pool/ spa
    Excellent value & service many thanks

  62. Anonymous says:

     United Kingdom

    Another Great product much needed for your pool/ spa
    Excellent value & service many thanks

  63. XTGDonaldax says:

     United Kingdom

    Indispensable for maintaining correct chemical balance of Spa / Pool water.
    Add small quantities at a time.
    Easier to add more than try to re balance with PH + (also needed if you want to do a good job of keeping your pool / spa water healthy & safe to use).

  64. SergioVelasquez says:

     United Kingdom

    hese are just what i was looking for. they came quick thanks

  65. Anonymous says:

     United Kingdom

    Great little tub, could do with a bigger one as it gets used quite a bit.

  66. Anonymous says:

     United Kingdom

    Great value for your hot tub and you got to get this or your eyes will burn!

  67. Anonymous says:

     United Kingdom

    You’ll be surprised how much of this stuff you need to balance the water after the hot tub has been winterised.

  68. Anonymous says:

     United Kingdom 🇬🇧

    Much cheaper to but like this than in the starter kits

  69. Anonymous says:

     United Kingdom 🇬🇧

    Arrived promptly, but needed to add a lot over a period of a week as dosing instructions aren’t very accurate, but did work eventually so happy custome

  70. AnnelieMcArthur says:

     United Kingdom

    I bought this for my portable hot tub as my ph readings were low. I add 11g per day and it does make the ph level rise to a safe level. It comes in a large tub and even after using it very day for weeks I still have half a tub left for next seaso

  71. Anonymous says:

     United Kingdom

    very good better than the best way ones but both do the job.

  72. Anonymous says:

     United Kingdom

    Works perfectly. It reduces the pH of the swimming pool water. Does exactly what it says on the tin. 😉

  73. WilfredMcKim says:

     United Kingdom

    hankyou it was just what was needed to clear my pool it arrived when you said and was in a child proof containe

  74. Anonymous says:

     United Kingdom

    ecessary to keep spa water at right level, needed this as a replacement for we had when we originally got spa pool

  75. AlexandriaTicke says:

     United Kingdom

    eed replacement as have used up all the clearwater we originally had with our spa pool, needed to quick water good

  76. HowardBedford says:

     United Kingdom

    Works as stated and well worth it, price acceptable for the item, will recommend to others, thanks for the product, delivered on time.