product image
product image preview
product image preview
product image preview
product image preview
product image preview
product image preview

Walex Porta-Pak Black Holding Tank Deodorizer & Portion Control System Drop-Ins - Rapid Breakdown of Waste & Paper, Odor Prevention, Cleans Tank & Sensors - Fresh Scent, 10-Pack

9.38

Save 22%

Other platform prices

Walex Porta-Pak Black Holding Tank Deodorizer & Portion Control System Drop-Ins - Rapid Breakdown of Waste & Paper, Odor Prevention, Cleans Tank & Sensors - Fresh Scent, 10-Pack

4.7

7K+ bought in past month

Highest ranking 101

13 comments

$9.38

Save 22%

Other platform prices

· WASTE BREAKDOWN - Porta-Pak RV Marine Holding Tank Deodorizer breaks down waste and stubborn RV toilet paper, keeping your holding tank sensors working effectively. No more clogs or backups. · HOLDING TANK DEODORIZER - Porta-Pak marine and RV holding tank deodorizer tackles unpleasant smells. Say goodbye to embarrassing odors with your boat, camping toilet, and RV toilet tabs. · VERSATILE FOR ALL TANKS - Our marine and RV tank deodorizer for black tank cleans tanks from 2.5 gallons - 40 gallons. Ideal for RVing, boating, boondocking, and portable camping cassette toilets. · FRESH 10 PACK - Our marine and RV drop ins for toilets dissolve immediately upon contact with water. Just Drop it in - no messy spills. Non-staining color. · MADE IN USA - Walex has been a global leader in developing and manufacturing premium odor control and sanitation products since 1987.

Related products

Reviews From
avatar

RheannaReviewed in the United States on August 21, 2024

**2025 edit** Just ordered some more of these, I bought the last bag in August of 2024. I didn't really use them throughout the winter because it was cold enough that they weren't needed, we weren't having any odor issues. But it has started to warm up some and the smell hath returned. I had 3 packs left after winter and just put my very last one in. I'm still just as thrilled now as I was when I first got them, I don't know what's in these but they definitely help eliminate the black tank stank! i ordered one pack of each scent, I am eager to try them all out. I would also like to add that I do NOT put toilet paper in our tank and we also have a bidet (which = more water in our tank vs just flushing) so I'm not really sure how much that changes the equation, but for us they most definitely work! ------ When I first got my camper friends and family told me not to even bother with the packs because none of them worked and were a waste of money. After trying many different kinds I finally gave up and went with the "dawn and fabric softener" approach that everyone said worked better than packs. While it did work better than most packs it was definitely expensive and there were still smells. I've been full time in my camper for almost 3 years now and I had pretty much given up hope. I started getting desperate and used Bleach in the tank when it was really bad, but it still smelled horrible after a day or two. I was so impressed one day when I visited a fully loaded port-a-potty in the 100+ degree heat that had zero odor that I started trying to figure out what they put in port-a-potties because I was going to find a way to order some lol. That is how I stumbled across these packs and saw the great reviews. I decided to give them a try and low and behold THEY WORKED. No more black tank belch when you flush! No more stinky bathroom! No more black tank air (un)freshener wafting through my camper! No more sewer showers from my fan sucking the stank out of the tank while I'm showering! I am so so so thankful I found these! It seemed like no matter what I did, how often I dumped my black tank, no matter how much tank flushing I did, or what I put in the tank there was always an odor in the bathroom. ALWAYS. There was even odor outside the camper coming from the hose and septic. I literally could not take it any more. When these first arrived I wasted no time adding one to my tank. I had just emptied the black a few days prior but added one anyways. I still had marvelous results. There was some odor in the camper when I emptied the black tank, but it was probably 1/4th of what it usually is. After I dumped the black I immediately added a pack and put several gallons of water behind it. I have had ZERO odor with the 2nd pack as well. I am patiently awaiting the next dump day to see how good it will work at keeping the odor at bay during a dump this time since I started off with a pack instead of adding a pack to an already stinky tank. I am just amazed every time I go in the bathroom it actually smells fresh and clean in there instead of stinky. This is the first time that has happened in almost 3 years. I am so very happy. I'm eager to try the other scents and see if they work just as well. It hasn't been over 100 degrees since I got these packs but it has been in the high 80s and lower 90s, I am hoping they perform just as well in the intense heat as they have so far. But regardless, to have at least gone this long in the summer without having to smell black tank stank is a win for me. I will definitely be ordering more!

avatar

AllisonReviewed in the United States on May 23, 2025

This is the only brand I use in our rv toilet. I’ve never had smells or issues. I’ve tried happy camper and Digest-it and always go back to this.

avatar

ZulaMadReviewed in the United States on May 5, 2025

These things work on your black tank to make it smell great.

avatar

Amazon CustomerReviewed in the United States on March 20, 2025

I use this in my portal potty which is in my truck. It’s a life saver. Nice scent but does nothing for #2.

avatar

J MershonReviewed in the United States on May 12, 2025

Works perfect

avatar

EvelanyReviewed in the United States on May 7, 2025

Bueno

avatar

Your average amature camperReviewed in the United States on April 4, 2025

Really good stuff. I use in my portable toilet which has a 5.8 gallon waste tank. I use one drop in and was surprised at how good the odor control is. If you own a portable toilet or camper with a holding tank, this stuff works great. Very happy with this product.

avatar

meReviewed in the United States on April 6, 2025

I use these all the time in my RV septic when I'm not at full hook ups and need a break down product. Seem to work well and makes complete dumping much easier.

avatar

ArchieReviewed in Australia on March 10, 2025

Great for our caravan. Stops odours and keeps cartridge fresh.

avatar

RodrigoReviewed in Mexico on January 30, 2025

Excelente producto

avatar

khalifa a.Reviewed in the United Arab Emirates on December 25, 2024

Excellent product

avatar

lisa powderReviewed in Canada on September 27, 2023

Love the scent. Easy to use . I'm going to order more scents. This is fresh linen. Lovely

avatar

Pierre ProulxReviewed in Canada on August 11, 2024

Smells good