Duda Energy 25 lb Pure Sodium Carbonate Dense Soda Ash Na2CO3 pH Adjust Chemical Spa Pool Cleaning Dishwasher …

I bought the 50 lb pail of pure sodium carbonate from Duda Energy for use in our pool, and it’s been a great investment. It works just as well—if not better than the smaller, more expensive bags from local pool supply stores. The large pail has lasted us a long time, which means fewer trips to the store and less hassle overall. It’s also been more cost-effective in the long run, especially during pool season when we go through this stuff quickly. The quality is great, dissolves easily, and helps keep our pool water balanced without any issues. If you’re tired of constantly buying small bags or overpaying locally, this is definitely the way to go. Highly recommend for any pool owner looking to stock up and save!

I use this for tie dye. It works wonderfully and happens to be among the cheapest.

This will make your laundry fresh and clean when used with a good detergent especially if you have really hard water. Shipping was crazy fast!

Prompt delivery, good pricing. Very conveniently packaged in 5 lb unit bags (tossed into a box by a-m-a-z-0-n). PS - Not for use by the chemically ignorant! Do not order unless you can pass this SAFETY quiz... 1) Did you get a B+ in high school chemistry? 2) Do you have REQUIRED safety PPE ? must include; a) Faceshield, b) N95 mask, c) Thick long sleeved gloves, d) Chemical spill containment like diatomaceous earth, e) Mildly neutralizing material (Sodium Carbonate is caustic / alkaline) So far, so good: Handle / open / dispense this material with care! Avoid dispersing into breathable airflow / under windy conditions! Keep away from children. Lock up unused material away from unqualified personnel. Know proper first-aid, Be able to contact 911 emergency / poison control.

This is exactly what I needed and it's a great product with the perfect package. The grade of the product seems quite clean. People get this product [soda ash] mixed up with bicarbonate of soda used in a pool. Soda ash is used for raising the pH, but doesn't affect the reading of carbonates in the water, otherwise known as total alkalinity for the purpose of your pool test kit. This directly raises the pH level whereas the bicarb raises the total alkalinity [TA], which in turn stops the pH from dropping too far. It is designed more as a pH buffer and to reduce the corrosiveness of the water. The proper use of bicarbonate of soda is to raise the TA to between 80-120 ppm, preferably on the high side if your pH tends to drop. This will help protect equipment and provide a pH buffer so the pH doesn't fluctuate as much. Soda ash [this product] should only be used to raise the pH. So first, adjust your pH with this product, then establish the above values on your TA, and then come back and check your pH level again if necessary. Proper pH for a swimming pool should be between 7.2 and 7.6 if you are using chlorine as your sanitizer. That is also the human comfort zone and eyes and skin can become very irritated if the pH is off by very much. When you get outside of that pH range, your chlorine stops working as well and you could start to have sanitation issues even if your chlorine levels are in the proper range. Pools tend to fluctuate pH range up or down depending on what other products you use and the pH of any replacement water. As such, pool water tends to either go up or down consistently. Therefore, if you regularly use either a pH increaser or decreaser, you will rarely require the other unless you've overdosed or done something completely different like used a different sanitizer.

My reasons for 4 stars instead of 5 is that one of the 2 bags leaked. Wish I hadn’t opened the box in the kitchen. Didn’t expect that I should have opened it outside.

Perfect for making laundry soap. I enjoy being able to buy a large amount at a time that isn't a name brand at name brand pricing. Will buy again.

Cheap and effective. A pool owner’s dream. It dissolves quickly and spreads effectively.

It works well