--- product_id: 46972202 title: "Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer" brand: "pure pool supplies" price: "NZ$10" currency: NZD in_stock: false reviews_count: 8 url: https://www.desertcart.nz/products/46972202-pure-pool-supplies-ph-down-2-lbs-ph-decreaser-ph store_origin: NZ region: New Zealand --- # Lowers pH levels Compatible with pools & spas Fast dissolving Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer **Brand:** pure pool supplies **Price:** NZ$10 **Availability:** ❌ Out of Stock ## Summary > πŸ’¦ Dive into clarity with Pure Pool Supplies! ## Quick Answers - **What is this?** Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer by pure pool supplies - **How much does it cost?** NZ$10 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/46972202-pure-pool-supplies-ph-down-2-lbs-ph-decreaser-ph) ## Best For - pure pool supplies enthusiasts ## Why This Product - Trusted pure pool supplies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Versatile Use:** Perfect for both pools and spas, including saltwater systems. - β€’ **Quick Action Formula:** Dissolves rapidly for immediate results. - β€’ **Transform Your Water:** Say goodbye to high pH levels and hello to crystal-clear bliss! - β€’ **Skin-Friendly Solution:** Prevents irritation for a soothing swim experience. - β€’ **Protect Your Investment:** Reduces scale and stains, prolonging the life of your equipment. ## Overview Pure Pool Supplies pH Down is a 2 lbs. sodium bisulfate powder designed to effectively lower high pH levels in both pools and spas. It prevents eye irritation, clears cloudy water, and reduces scale and stains, ensuring a safe and enjoyable swimming experience. ## Description Pure Pool Supplies pH Down helps lower pH levels and helps prevent cloudy water and scaling in pools. pH Down helps prevent itchy skin. Directions: Always test the water prior to using this product. Pre-dissolve this product in a pail with water and slowly pour around the perimeter of your pool while circulation equipment is running and the pool is not in use. Wait at least two hours after the use of this product to enter the water. Dosage: If the pH is above 7.6 add this product in accordance with the directions to bring the pH into an acceptable level, between 7.2 and 7.6 using the dosage chart. Re-Entry: Test water and enter when the pH reaches ideal 7.2-7.6 range. Storage And Disposal: Keep this product sealed in the original container in a cool, dry, well ventilated area. Do not store this product wet. Do not keep near open flames. Keep out of reach of children and pets. Do not re-use this container. After use, rinse container well with water and dispose of it with trash collection. ## Features - LOWERS pH levels, corrects problems associated with high water pH, works in both pools and spas, and is compatible with salt water pools - PREVENTS eye irritation and helps itchy or sticky skin - CLEARS hazy, murky, or cloudy pool or spa water due to high pH - REDUCES SCALE and stains which can place a strain on your pool equipment - FAST DISSOLVING powdered chemical made of Sodium Bisulfate ## Images ![Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer - Image 1](https://m.media-amazon.com/images/I/71aPYun4kqL.jpg) ![Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer - Image 2](https://m.media-amazon.com/images/I/81NdABvqzHL.jpg) ![Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer - Image 3](https://m.media-amazon.com/images/I/71ueZ08eGvL.jpg) ![Pure Pool Supplies pH Down 2 Lbs. (pH Decreaser pH Minus Sodium Bisulfate) Pool Spa Balancer - Image 4](https://m.media-amazon.com/images/I/7170jbBsxuL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Small quantity but product works great! *by K***E on Reviewed in the United States on April 3, 2020* Worked fast and efficiently when I needed to lower the pH in my pool from 8.2 to 7.4. It is definitely a small package (and it does reseal very well, so do not cut below the β€œzip” part) so if you’re having to add pH down several times a week, I suggest buying a larger quantity of it since this only lasted me a week. However, it did what I needed it to do when I opened my pool and needed to get the pH lowered quickly before my larger jug was scheduled to arrive. My only complaint would be that there are some thicker clumps but that is pretty much any powdered pool chemical. I slowly broadcasted it across the perimeter of my above ground pool in a measuring cup (more so in front of the return jet) and ran my pump 2 hours, as instructed. Tested the pH afterwards and it was perfect! I recommend for smaller pools. 4/5 stars due to the price being a wee bit high for the very small amount of product and for the clumps. I would purchase again if I needed pH down in a pinch. Oh and adding even a tiny bit makes the pool water SPARKLE!! :) ### ⭐⭐⭐⭐⭐ Makes PH balance simple *by M***S on Reviewed in the United States on May 7, 2020* Just what we needed to maintain PH. We have a lot of oak trees in our yard which seems to keep PH dropping. This is a good product and reasonably priced. Dissolves well and doesn’t damage the liner. Would buy again. ### ⭐⭐⭐⭐⭐ Had high pH AND alkalinity levels before using this. *by L***Z on Reviewed in the United States on July 30, 2018* My second bag within 2 months and it has slowly but surely decreased my pH level AND alkalinity levels. I've been having high alkalinity problems since I took over my tia's pool over the summer (highest was 280ppm!). With this bag, and adding the correct amount suggested weekly, I have lowered my pool's alkalinity level to 170ppm as well as balancing my pool's pH level to 7.2-7.4. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/46972202-pure-pool-supplies-ph-down-2-lbs-ph-decreaser-ph](https://www.desertcart.nz/products/46972202-pure-pool-supplies-ph-down-2-lbs-ph-decreaser-ph) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-04-25*