pH Increaser Soda Ash 4kg | Pool & Spa pH Up | Perfect Pools NZ
Low pH making your pool uncomfortable? pH Increaser (Soda Ash) is the fast, reliable way to raise pH in swimming pools and spa pools - protecting your swimmers, your equipment, and making sure your chlorine actually works.
When pH drops below 7.2, chlorine loses up to 50% of its effectiveness, water becomes corrosive to fittings and surfaces, and swimmers experience stinging eyes and irritated skin. A quick dose of Soda Ash fixes all of that.
Why pH Balance Matters
- Ideal pH range: 7.2 - 7.6 for pools | 7.2 - 7.8 for spas
- Below 7.2 - water is acidic, corrosive, and irritating to skin and eyes
- Above 7.8 - chlorine becomes ineffective, water turns cloudy
- Correct pH = maximum chlorine efficiency and comfortable swimming
Product Features
- Active Ingredient: Sodium Carbonate (Soda Ash) - fast-dissolving pH raiser
- Fast-Acting Formula - raises pH within hours of application
- Dual-Purpose - suitable for swimming pools and spa pools
- Prevents Corrosion - protects pool shell, fittings, and equipment from acidic water damage
- Boosts Chlorine Efficiency - chlorine works best at correct pH levels
- 4kg Resealable Pail - moisture-resistant storage for long shelf life
Dosing Guide
Spa Pools:
- Add 1 teaspoon (7g) per 1,000L to raise pH by approximately 0.5
- Dose gradually - retest after 30 minutes before adding more
- Always run jets while dosing for even distribution
Swimming Pools:
- Add 500g per 50,000L to raise pH by approximately 0.5
- Pre-dissolve in a bucket of water before adding to pool
- Allow 6 hours of pump circulation, then retest
- Apply near a return jet for best distribution
Tip: Always test pH before and after dosing. Target 7.2-7.6 for pools, 7.2-7.8 for spas. Never add more than the recommended dose in a single application.
Available Sizes
- 1kg Pail - ideal for spas or small top-up doses
- 4kg Pail (this product) - most popular for regular pool maintenance
- 10kg Pail - best value for large pools or frequent use
Use Alongside These Products
pH Increaser works as part of a complete water balancing routine. Pair it with:
- Crystalline Chlorine 4kg - sanitize at the correct pH for maximum effectiveness
- 5-in-1 Test Strips - test pH, chlorine, alkalinity, and hardness before and after dosing
- Spa Pool Starter Kit - includes pH Increaser plus everything else you need for a fresh fill
Safety & Storage
- Store in a cool, dry place away from direct sunlight and moisture
- Keep away from children and pets
- Do not mix with other pool chemicals
- Avoid inhaling dust - use in a well-ventilated area
- Wash hands thoroughly after handling
Pickup & Delivery
📍 Perfect Pools Service Warehouse - 15C Douglas Alexander Parade, Albany
📅 Hours: Mon-Fri 9am-4pm | Sat 10am-2pm
🚛 Auckland delivery available - mobile services by appointment
📩 Questions? Email perfectpoolsnz@gmail.com or call 022 286 2881
❓ Frequently Asked Questions
Q: How quickly does pH Increaser work?
A: pH begins rising within 30-60 minutes of application. Allow 6 hours of full circulation before retesting and re-dosing if needed.
Q: Can I add pH Increaser and chlorine at the same time?
A: No - always adjust pH first, wait 6 hours, then add chlorine. Adding both together reduces the effectiveness of both chemicals.
Q: What if I add too much?
A: High pH (above 7.8) causes cloudy water and reduces chlorine effectiveness. Use a pH Decreaser (Sodium Bisulphate) to bring it back down.
Q: How often will I need to adjust pH?
A: Test weekly during summer and after heavy rain or high bather load. Spas should be tested after every use.
Q: Is this safe for all pool types?
A: Yes - safe for concrete, fibreglass, vinyl liner, and tiled pools, and all spa pool types.
🎯 You Might Also Need
- 5-in-1 Pool & Spa Test Strips - always test before dosing
- Crystalline Chlorine 4kg - sanitize at the right pH for best results
- Spa Pool Starter Kit - complete water care bundle for new spa owners
