Clear & Safe 1kg pH+ Plus Increaser - Sodium Carbonate

by Plastica
  • Clear & Safe pH Increaser
  • Plastica Pool & Spa Chemicals
  • pH Plus - Soda Ash for increasing the pH of hot Tub /Spa water
  • Fast acting
  • Can be used with all types of disinfection control
  • Next Working Day Delivery

DELIVERY: Relax Hot Tub pH Plus is sent out on a next working day service but all standard deliveries will be within 5 working days

RETURNS: Relax Hot Tub pH Plus can be returned unused, in original packaging, suitable for resale, within 14 days from date of delivery.


Clear and Safe pH Increaser is used to raise pH level of your pool, spa or hot tub, it is an essential chemical to keep the water balanced and neutral, sanitisation products need this to work correctly and keep you and your family CLEAR & SAFE™ from harmful bacteria and germs.

Water in pools, spas and hot tubs should be tested daily, you are aiming to achieve a pH level reading between 7.2 and 7.6 before adding chlorine. Use pH+ or pH- to adjust if necessary. Pool free chlorine levels should be between 1ppm* and 3ppm* and spas should be between 3ppm* and 5ppm*. Maintain these levels to keep your water CLEAR & SAFE™.

Contains : Sodium Carbonate EC No 207-838-8

*ppm = Parts Per Million

How much do i need to use?

Water Volume Volume to use
Litres Gallons Amount
1,000 220 10g
10,000 2,200 100g
25,000 5,500 250g
40,000 8,800 400g
50,000 11,000 500g