Wellis Crystal Chlorine Tablets (1 kg)
What it does
Releases free chlorine gradually into your spa water as the tablet dissolves, killing bacteria and organic contaminants while leaving a residual sanitiser level. Used with WellisGuard, you get 20% fresher water than chlorine alone, with less chlorine smell.
When to use
Continuously, via a floating chemical dispenser. Refill when tablets are gone (typically every 1–2 weeks for private use). Always test free chlorine 2–3× per week and aim for 1–3 ppm.
How to use
- Place 1–3 tablets into a Wellis floating chemical dispenser.
- Adjust the dispenser flow ring (slower = lower chlorine).
- Float on the spa surface; remove before bathing if direct contact is a concern.
- Re-test free chlorine after 24 hours and adjust the flow ring.
Never drop tablets directly into the skimmer or spa shell — concentrated chlorine can stain or damage acrylic.
⚠ Important — please read before use: Always follow the dosing instructions printed on the product label and on the Safety Data Sheet (SDS) supplied with the chemical. Consult your Wellis spa user manual for product-specific water-care guidance applicable to your model, water source, and usage pattern. Never mix water-care chemicals together directly — always add each product separately to circulating spa water with the pump running. The information on this page is provided as general guidance only and does not replace the manufacturer's instructions or professional advice. TwoRelax accepts no liability for damage, injury, water-quality issues, or equipment failure resulting from incorrect use, improper dosing, mixing of incompatible products, or failure to follow the manufacturer's instructions.