Boost your Spa Pools pH levels with pH Increase. Available on next-day nationwide delivery*.
In stock now
$20.00
Keep your water clear, and increase your pH levels with pH Increase.
Crystal Water pH Buffer is a fast dissolving pH increaser designed to work in any spa or swim spa.
Easy to use, with clear instructions on the back of the container.
For best results, test your water weekly, and only add if the test strip reads that your spa has low pH levels.
Ensure that you check and maintain your pH and Alkalinity levels weekly, and adjust as needed.
Click add to Cart, and this will go on next-day nationwide delivery*.
*Overnight Courier, next business day delivery. rural may take an extra 2-3 business days.
*Pricing does not include delivery, delivery fees can be found once you have added to cart.
We are the only online-only spa pool retailer in NZ. No warehouse, no showroom, no overheads.
With these savings, we have invested in some of the best in market North American acrylic, excellent insulation, and jets made from the world's largest jet manufacturer. All of this while still offering some of NZ's best prices and warranties.
Jet Spas is a New Zealand owned and operated company, with team members based around New Zealand and service technicians around the country.
We offer nationwide delivery into place throughout New Zealand.
Delivery costs vary from region to region. To get an estimate of how much your delivery will cost, add the product to your cart then select your delivery region. Alternatively, contact us for an estimate.
Jet Spas are assembled in China using premium materials from North America and around the globe. The heaters and pumps are derived from the world's largest spa pump manufacturer. These are the same pumps used in 90% of New Zealand spa pools.
Stainless steel jets are sourced from the United States' leading jet manufacturer and are the main jets used in many spa pools in New Zealand. For the interior, we use North American Acrylic.
Every spa pool includes a complementary lockable hardcover, steps, and chlorine shock treatment.
The Jet Process was developed following conversations with hundreds of kiwis about the best and trickiest parts of spa ownership.
The Best Prices
As NZ’s only true online-exclusive spa pool retailer, with no costly show rooms, Jet Spas can offer superior products and competitive pricing.
Simple Maintenance
Empty your Jet Spa once a year instead of every few months with our Simple Silver Water Treatment. Enjoy a safe and hygenic spa every time.
Exceptional Standard
Every spa pool is built with premium materials including North American acrylic, CD OZone water filtration, strong insulation, and superior jets.
Amazing Warranty
Jet Spas offer an incredible 10 year structural warranty, and we back our heater and controllers with our 5-year Jet Warranty.
Reviews
We purchased the Thunderbolt 6 person Spa from Jet Spas, it is so roomy and we love the different massage options the jets and two pumps offer. The communication from Jet Spas, including post-sale support has been fantastic. This really is a spa company that offers best value for money without compromising on the important features. Thanks Jet Spas.
Jessica, Whanganui
I got the gulfstream a few days ago and I am extremely happy with the spa. I did a bit of research before and I couldn’t find a more cost-effective option. Totally affordable and 12 months free-interest finance. Big Thanks Jet Spas Team :-)
Santiago, Hamilton
Our Jet Spa has been great thank you. It’s the perfect size as there’s only the two of us. Water usage and heating cost was a primary factor in choosing our latest spa. We use it most evenings and hope to continue usage through the winter as we have set it up under a louvre pergola six steps from the master bedroom slider.
Heather, Tauranga
We had been searching for a small spa pool for a while and found Jet Spas website. We found that a Tango would be suitable for the two of us and that the pricing was very reasonable. Upon ordering Jet Spas were helpful and knowledgeable in assisting us with our purchase. We are very happy customers and have recommended Jetspas to close friends.
Amanda, Masterton
After much searching, we finally decided on a Jet Spa Gulfstream. From initial contact to after-sales service, we have been very happy with the communication from the Jet Spas team. The Spa is great, very well built, and the ideal size for two of us.
Chris, Whitianga
Sarah, Hamilton
Kiwis love Jet Spas. Here are a few reasons why our pools are so popular.
Chlorine-free, bromine-free; hassle-free options available
Connect your smartphone to our WiFi compatible controller
Our premium North American acrylic looks just as good as the photos
Using world-leading jets, a Jet Spa massage is simply superior
Buying a spa pool is a big investment, and we want to help protect your investment. When you buy a Jet Spa, you can rest assured knowing you have some of the strongest warranties on the market.
10 Year Structural
5 Year Acrylic
5 Year Jets
5 Year Heater and Controller
More to love
Our powerful OZone systems kills bacteria and oxidizes your water, removing the need for chlorine when used with Simple Silver.
Paying extra for a cover and steps? No way. As a standard, Jet Spas offer a cover and steps so that your spa is ready to use from the get-go.
Insulation is what makes the difference in your power bill. Our premium insulation helps keep your running costs low and your spa toasty.
Easy as!
Paying via visa or credit card is a safe way to ensure that the payment is quickly processed, and your order is secured.
Enjoy your spa pool now and pay later with Gem and Q Card. Terms vary per product so contact our team to see finance terms available.
For direct debits, we collect a 50% deposit and the remainder of the purchase due the month your new spa pool is due to arrive.
That’s okay! Take a look at these other options.