




Pro Swim Total Alkalinity Increaser
Pro Swim Total Alkalinity Increaser is a highly effective solution designed to stabilise and balance alkalinity levels. Proper alkalinity is essential for maintaining a stable pH level, preventing fluctuations that can lead to corrosion, staining and discomfort for swimmers. Without proper alkalinity, chlorine treatments will fail to work effectively, leading to pool and hot tub damage.
Key Features:
- Easy to use formula
- Ensures optimal water quality
- Reduces likelihood of equipment damage and chemical inefficiency
- Creates a safer, more enjoyable swimming environment by minimising eye and skin irritation
- Dissolves quickly and easily
Ideal for use in:
- All swimming pool types
- Hot tubs and spas
Available 1kg & 5kg
ONPFG054-1: 1kg
ONPFG054-5: 5kg

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.