Review on 🚽 20 Packets of Mulberry RV Holding Tank Deodorizer + Septic Tank Treatment + Cleaner - Sewer Solution, Marine Camper Portable Toilet Chemicals, Odor Eliminator - Formaldehyde Free, Made in USA by Aaron Zaragosa

One pack didn't help us. We have a 50 gallon black water tank and always reset it to 2/3. Our camper has a flushing system and this is done regularly. The product breaks down waste well, but we had odor issues with just one sachet. The two packs did a very good job of controlling odor. I'm sure the product works well in the smaller storage tank, but in the larger tank we're leaving out two. No issues with product or odors when using two packs. Do we buy them again? Yes, due to availability at RV and Wal-Mart stores, and they do the job.