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Walex

Walex Commando RV Black Holding Tank and Sensor Cleaner, Camper Trailer Black Holding Tank Drop-Ins Pods Tabs, Ocean Mist

    • Based on 2,145 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Dec 24
Order within 14 hours and 5 minutes
Available payment plans shown during checkout

Size: 4 Count (Pack of 1)


Features

  • CLEANS RV HOLDING TANK AND SENSORS - The RV black tank and sensor cleaner helps restore sensor function and lubricates valves and seals, ensuring your RV's black tank functions smoothly.
  • ELIMINATES WASTE BUILDUP - The RV tank cleaner eliminates waste and paper buildup from tank walls and sensors in 12 -24 hours. For stubborn issues, Commando can be safely used for a week or longer.
  • ADVANCED ENZYME POWER - Our super-concentrated formula contains powerful natural enzymes, the black tank cleaner for RVs breaks down waste and paper for a thorough clean.
  • EFFORTLESS MAINTENANCE - The RV holding tank cleaner is septic system safe. Continued use of Commando every 3 months will help keep your black tank and sensors in good working condition.
  • MADE IN USA - Walex has been a global leader in developing and manufacturing premium odor control and sanitation products since 1987.

Description

Bid farewell to the frustration of inaccurate sensor readings. Our RV holding tank cleaner swiftly restores sensor function, ensuring you always have an accurate view of your tank's status. The RV black water tank cleaner lubricates valves and seals, providing a layer of protection that ensures your RV's black tank functions seamlessly. No more worries about leaks or malfunctioning components. This powerful camper tank cleaner eliminates waste and paper buildup from your tank's walls, leaving them sparkling clean and removing odors in as little as 12 to 24 hours. Our super-concentrated enzyme trailer septic tank cleaner is scientifically developed to tackle the toughest waste and paper buildup. These natural enzymes penetrate waste caked to the tank walls and sensors, breaking down buildup and ensuring a thorough clean. Using Commando is a breeze, thanks to the easy-to-use dissolvable packets. No mess, no fuss—just drop it in and let the enzymes work their magic. Plus, it's septic system safe.

Brand: Walex


Item Form: Tablet


Scent: Ocean Mist


Specific Uses For Product: Toilet


Material Feature: Natural


Manufacturer: ‎Walex Products Company, Inc


Brand: ‎Walex


Model: ‎CMDOBG


Item Weight: ‎2.39 ounces


Product Dimensions: ‎8 x 5 x 2 inches


Country of Origin: ‎USA


Item model number: ‎CMDOBG


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎CMDOBG


Special Features: ‎Concentrated


Date First Available: January 25, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Works!!
Size: 4 Count (Pack of 1)
This stuff straight up works! I filled my black tank with water a few weeks back, dropped one of these in, took it to storage about 2 miles from home. Today I picked the RV up and brought it home and dumped the black tank. Voila it reads empty. Wow, this is the first time in the 4 years that I’ve owned it the black tank monitor is reading empty. ... show more
Reviewed in the United States on September 30, 2024 by Mark Peden
    • Worked for me
Size: 4 Count (Pack of 1)
I dropped these in my filled black tank because my sensors were not working . I waited 2 days emptied the tank checked the sensor readout and yes the sensors were working again.
Reviewed in the United States on October 28, 2024 by Amazon Customer
    • Didn’t work on our sensors
Size: 4 Count (Pack of 1)
This product doesn’t guarantee to fix the RV sensors so with that said I can’t fault the product, we just might need new tank sensors. The product did do an excellent job cleaning the tanks and has a pleasant scent that is not overpowering. I wish it had fixed our sensors!
Reviewed in the United States on June 26, 2023 by Suzanne
    • An Rv best friend
Size: 4 Count (Pack of 1)
I learned about this product from a mobile Rv repair guy on one of my trips it works so wonderful and it’s a must for an Rv or plug ed drain
Reviewed in the United States on September 11, 2024 by homer k reyes
    • Black Tank level sensor fixed!
Size: 4 Count (Pack of 1)
Purchased to solve an inaccurate black tank level sensor showing 1/3 full when empty. Followed instructions for a 24 hour treatment. Level meter now correctly reads empty when empty. I thought I had cleaned tank well previously but was amazed how much more “stuff” came out after this treatment. This will now be part of my periodic maintenance. Those other packets we drop in after dumping are just for controlling odors. This stuff really does dissolve built up residue. Don’t hesitate. Try it. You’ll like it. ... show more
Reviewed in the United States on October 21, 2024 by Michael T.
    • Less effective then other brands
Size: 40 Count (Pack of 1)
I used these for 6 months while living full-time in my RV. I recently noticed a slight odor when flushing. I flushed the tank and doubled the recommended quantity, without relief. In a small space, odors can be a huge problem. I switched to another brand and the odor is gone.
Reviewed in the United States on May 16, 2024 by Ewriter
    • Wowzers!
Size: 40 Count (Pack of 1)
So we bought a travel trailer third-hand. We believe the black water tank was emptied before it sat up for the past year, but not cleaned out in any way. So we've been having to force down waste for a couple weeks. I searched online for a solution because the regular black water tank treatments meant to dissolve current waste and toilet paper weren't helping at all. I used a method described by others online, putting hot water with dishwashing liquid into the tank. I even added baking soda for some softening and slip. That caused a rush of gunk to flow out and resulted in a really awful stench (I guess it got some of that old stuff moving!), but still stuff was clogging near the top. Maybe doing it again would have helped more, but I went ahead and bought this product after reading the good reviews. Well, we emptied the tank again (or so we thought) before replacing the toilet. After removing the old toilet, we realized the tank was clogged again and the waste was almost to the top. I opened a Commando packet and poured it right in. I cleaned up where the old toilet sat, my husband installed the new one, and I checked the sewage level with every flush expecting that at some point it would go down. About 6 hours later, I noted that the level had gone down some. It was still pretty high up, but that was progress, and I knew it would take longer. Well, I just checked again. It's been 20 hours since I poured the packet in and I was shocked to find that not only is the waste too far down for me to see it anymore, but I can see sunlight coming in through the tank walls. I don't see one bit of gunk stuck on it either and the stench is gone. My gosh, this stuff really works, and it only took one application. Keep in mind that we throw away most of the toilet paper (all from #1 but not #2), so it's not overburdened with toilet paper--at least not from us. Expecting more of an issue, I actually bought the bucket of 40 packets and I was expecting to use one a week. I'll see how it goes, but I may not actually need this many after all. I do not regret the purchase at all though. ... show more
Reviewed in the United States on May 6, 2020 by LRo
    • Cleaned sensors
Size: 4 Count (Pack of 1)
I have had a problem with my black tank sensors always reading 2/3 full for 3 years. I tried several other products with minimal results. I drained the black tank then put water to about 3/4 full and 1 Commando packet and left my RV in storage for 2 months. I just drained the tank and my sensors are now reading empty. I am very pleased with this product and highly recommend it for cleaning black tank sensors. ... show more
Reviewed in the United States on October 5, 2024 by LC

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