Maintain crystal-clear, perfectly balanced spa water with Wave pH Reducer — specially formulated to gently lower pH and total alkalinity for a comfortable soak. Key Features: • Corrects Over-Alkaline Water: Restores ideal pH quickly • Protects Spa Components: Reduces scale, corrosion and cloudiness • Reliable, Efficient Formula: 1kg treatment for hot tubs and pools • Comfortable Soaking: Keeps water gentle on skin and eyes

Always follow the dosage guidance on the packaging and test your water regularly with a suitable test kit. Add chemicals with the filtration running. Store in a cool, dry place, tightly closed and out of reach of children. Wash hands after use. See product label for full safety information.

Something not quite right? You have 21 days from the day you receive it, to send something back. When you purchase Debenhams Deliver+, you will have an extra 14 days on top of our standard 21-day window to initate a return.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

Click here to view our full Returns Policy.