Review on Pro Products HP01B Professional Neutralize by Ben Diesel

I ordered a gallon to test first and it arrived as if it had already been used or diluted. We use it to pump hydrogen peroxide into well water and had to increase the setting to 65-75 (out of 100) to get the same result. It used to be at settings 35-45. The second order was for a four pack and it was much better packaged and properly sealed. For this 4-pack, we lowered the setting to 35-45 to get the same result. I don't know who to blame here and it's too late to report this to Amazon. All in all this product is amazing if what comes hasn't been tampered with.