Happy Hot Tubs PH Plus +
- High Quality Happy Hot Tubs PH Plus - Available in 1kg, 2kg, 5kg, 10kg and 20kg
- Alkali For Increasing PH Of Pool and Spa Water
- Add at A Rate of 10gm per 1,000 litres of water
- Happy Hint - Low PH will give you itchy skin and damage to your spa fittings so keep this at 7.2-7.4 for Happy Hot Tubbing!
Happy Hot Tubs PH Plus is a high quality powdered chemical used to increase the PH value of the water in your spa (7.2 to 7.6 is the optimum for spas).
If PH is too low, staining or corrosion may occur.
PH Plus is also used to increase the Total Alkalinity of your Hot Tub or pool water but it does require increased dose rates. Looking for a more specific Alkalinity Increaser? View Total Alkalinity Plus.
Customer Questions
- Test the PH of your pool or hot tub regularly (depends on usage but at least once a week). The PH should always been maintained at between 7.2 and 7.6.
- If your test kit reading indicates that the PH of your water is lower than 7.2, add PH Plus at a rate of 10gm per 1000 litres of pool and hot tub water (e.g. if your pool or hot tub contains 7,000 litres then add 70g of PH Plus). One heaped teaspoon holds approximately 9gm of PH Plus.
- Pre-dissolve in a clean bucket. Add directly to the water for hot tubs.
- Ensure the circulation pump or system is running when adding PH Plus.
- Slowly pour into water immediately above the pool return inlet or hot tub skimmer.
- Re-test after 30 minutes in pools or 15 minutes in hot tubs - additional dosing may be required to achieve the optimum level of PH 7.2 to 7.6.
- Never add product when pool or spa is being used; do not allow pool to be used for 15 minutes after adding PH Plus.
Dose Rate Grid
| Litre Capacity of Spa/Pool | PH Plus Dose Rate |
| 1000 | 10g |
| 10,000 | 100g |
| 25,000 | 250g |
| 40,000 | 400g |
| 50,000 | 500g |
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