Walex Porta-Pak Holding Tank Deodorizer & Portion Control Drop-Ins - Unbeatable Odor Prevention, Formaldehyde-Free, Non-Staining, Deodorizes & Breaks Down Waste and Paper, Dissolves Quickly - 50 Pack

I have bought these several times and it does a great job or cutting down the smell that comes from using the toilet. I am a full time RVer and will continue to use this product for as long as I am. Another RVer recommended it and gave me a few to try and I have been hooked using them every since. Overall great purchase and value.

good

Fresh scent and completely dissolves all solids! Don’t waste your money on the cheaper orange product, it’s nauseating & does not dissolve anything.

They do help

Following directions I use two packets with three gallons of water to give me a solid week of an odor-free system in weather with 90+ degree heat. Most of what's on the market gives four or fewer days under those conditions. It breaks down solids but not so good with toilet paper.

We have used these in our camper for years and have never had any problems. Great Product.

works great. just throw one in every time we dump the tank and have no odor problems till the next dump

This was the first rv tank deodorizer I purchased from rv dealer. My local store did not carry this brand. I tried the brands I could purchase locally. They did not work as well as this brand. It eliminates odors better than the other brands.