3 applications followed by heavy scrubbing. no improvement. last application i let the product sit in the toilet for 40 minutes. scrubbed until i was tired. the result was deposits/rust were not removed. i do not recomment this product. i am VERY DISAPPOINTED.

This is a great product. It never fails me when removing a pet stain or odor from the carpet. I also use it to clean or freshen up the inside of our dog crates each week. The smell isn't overwhelming like some other cleaners. And you can't beat the price on Amazon! You could easily pay more than double the price if you purchase at a pet store.

This sealed box was solid and well made. It had no leaks and was as advertised. It came with the white cotton type material on the inside that is supposed to increase the air flow and make it seem bigger than it is. I put a "Rockford Fosgate P3D4-10 Punch P3 DVC 4-Ohm 10-Inch 500-Watt RMS 1000 Watts Peak Subwoofer" in it. I had to remove the protective rubber cover from around the magnet. After that, it fit perfectly. The rubber cover was to protect the magnet before installation. I saw reviews where it stated that only a shallow woofer would fit. This woofer was large and most people wouldn't have known to take that bulky magnet cover off. I would buy this again if needed. I highly recommend this product.