Skip to content Skip to navigation menu

ODORLOS Odorlos Head Chemical

Used worldwide by waste water treatment plants, this nitrate compound is an effective way to control odor. The efficient chemistry does not require harsh perfumes or staining colors to work. Just four ounces of this concentrated formula treats 40 gallons. It also helps to lubricate valves and is 100% biodegradable. Treatment type: Nitrate.
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Odorlos Head Chemical, 68oz. Bottle 1170455 493-0
In stock online.

Reg. $26.99

Save $8.10

$18.89

Odorlos Head Chemical, 40oz. Bottle 1170570 495-0
In stock online.

Reg. $19.99

Save $6.00

$13.99

Odorlos Head Chemical, 4oz., 10-Pack 1170687 496-0
In stock online.

$19.99

Product Description

Used worldwide by waste water treatment plants, this nitrate compound is an effective way to control odor. The efficient chemistry does not require harsh perfumes or staining colors to work. Just four ounces of this concentrated formula treats 40 gallons. It also helps to lubricate valves and is 100% biodegradable. Treatment type: Nitrate.

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
Odorlos Head Chemical
 
4.3

(based on 18 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

83%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Advanced (6), Casual/ recreational (4), Professional (3)
    • Was this a gift?:
    • No (5)

Most Liked Positive Review

 

I, of course, was ...

I, of course, was skeptical. I've used nothing but deodorants since I started boating in my 55 ft houseboat. I thought I'd give this stuff a try, since it seemed to make...Read complete review

I, of course, was skeptical. I've used nothing but deodorants since I started boating in my 55 ft houseboat. I thought I'd give this stuff a try, since it seemed to make sense, what with the oxidation to nitrogen and all. In fact, and much to my pleasure, it worked as advertised. My blackwater vent is on the starboard side, and , used to be, no one wanted to sit on that side if I had not recently pumped. Now there are no comments like OK, who flushed...?" I found myself a little behind the "odor ball" when a bunch of folks showed up for a long weekend, and it was HOT. As you all probanly know, heat only makes things worse. The tank was 3/4 full, and had been collecting for 2 weeks, and the day we came in, we could all detect just a bit of stink. Next ime, when I see all those folks pulling up, I'll add another shot of Odorless..."

VS

Most Liked Negative Review

 

We have used Odorlos ...

We have used Odorlos liquid for 20 months to treat two (2) 45-gallon blackwater holding tanks in constant use. The tanks are well ventilated. The attached toilets use fresh water to...Read complete review

We have used Odorlos liquid for 20 months to treat two (2) 45-gallon blackwater holding tanks in constant use. The tanks are well ventilated. The attached toilets use fresh water to flush. In those 18 months, Odorlos has NEVER suppressed the odors, and the natural bacteria in the sewage has NOT SUCCEEDED in digesting the solids. At every bi-weekly pumpout, the treated sewage appears and smells completely untreated. We have given up on this product, and are switching to Bactain, a bioactive treatment.

Reviewed by 18 customers

Sort by

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Odorlos Head Chemical

By Frank

from Ohio

About Me Professional

Verified Buyer

Pros

  • Corrosion Resistant

Cons

  • Difficult to Install

Best Uses

    Comments about Odorlos Head Chemical:

    The best "head" chemical additive I have ever used in my 15 years of boating. Absolutely NO odors from your head. 4 oz. does 40 gallons.

    • Was this a gift?:
    • No
     
    5.0

    Worked great

    By Dom

    from Harrison twp

    About Me Advanced

    Verified Buyer

    Pros

      Cons

        Best Uses

        • Low Usage

        Comments about Odorlos Head Chemical:

        Works great

        • Was this a gift?:
        • No
         
        5.0

        Great Product

        By Brenda

        from Catawba Island Ohio

        About Me Advanced

        Verified Buyer

        Pros

        • Perfect Measurements

        Cons

          Best Uses

          • High Usage
          • Large Boat

          Comments about Odorlos Head Chemical:

          Wouldn't use any other "head" hoilding tank product. Have used this product for several years and have recommended to others

          • Was this a gift?:
          • No
           
          5.0

          Only Product to Use

          By Clemson Engineer

          from Coastal NC

          About Me Professional

          Verified Buyer

          Pros

            Cons

              Best Uses

                Comments about Odorlos Head Chemical:

                If you want the best product regardless of price. This is it.

                • Was this a gift?:
                • No
                 
                5.0

                Best stuff on the planet

                By jumbo slice

                from orlando fl

                About Me Professional

                Pros

                • Odorlos Is The Best

                Cons

                  Best Uses

                    Comments about Odorlos Head Chemical:

                    Best stuff ever. I have tried it all and nothing works like odorlos

                    • Was this a gift?:
                    • No
                     
                    1.0

                    Dry powder form liquifies

                    By Rabid Sailor

                    from Chicago

                    About Me Advanced

                    Pros

                      Cons

                        Best Uses

                          Comments about Odorlos Head Chemical:

                          The packaging of the powder form is not suitable for the marine environment. The packets are not air tight and the contents liquified in the high humidity marine environment. The resulting liquid leaked out of the packets and damaged the wood finish of the cabinet they were stored in.

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          Used thus product for years

                          By Pops @ TGO

                          from Eddyville, Ky

                          About Me Casual/ Recreational

                          Verified Buyer

                          Pros

                          • Corrosion Resistant
                          • Practical
                          • Smell Prohibitor

                          Cons

                          • None

                          Best Uses

                          • Usage On Motorhomesboat

                          Comments about Odorlos Head Chemical:

                          After each black tank dumping, I add Ordorles to the tank as I add water( 25% full). One if my RVs is a cabin at lake & never moves. In a 4.5 month season I dump only 3 times. Even in hot, humid weather we have no sewer smells.

                          (2 of 2 customers found this review helpful)

                           
                          5.0

                          Works wonders!

                          By Lauren

                          from Charleston, SC

                          About Me Advanced

                          Verified Buyer

                          Pros

                          • Gets Rid Of Smells

                          Cons

                            Best Uses

                            • Rv Holding Tanks

                            Comments about Odorlos Head Chemical:

                            We were staying at an RV park for a few weeks bring stationary, and we started to have awful smells coming from our black water holding tank. The main reason, we believe, was because the park was on well water, as well as the fact that we were stationary for much longer than usual. We used Odorlos and we have immediately had a difference in the smells. They were gone within a day or so after using the Odorlos. We definitely recommend it if you start having any smells or an increase in bacteria growth in your tanks.

                            Service and delivery comments:

                            West Marine shipped this item out quickly, and we also had free shipping, which was great!

                            (3 of 3 customers found this review helpful)

                             
                            5.0

                            Orderlies Head Product

                            By Jim

                            from Heber Springs, AR

                            About Me Advanced

                            Verified Buyer

                            Pros

                            • Destroys Odors
                            • Installs Easily

                            Cons

                            • None

                            Best Uses

                            • Large Boat
                            • Low Usage

                            Comments about Odorlos Head Chemical:

                            Odorless is the best we have found for our house boat. The container makes it easy to add to our tank and the solution does not leave an unpleasant odor even in the heat of the summer

                            (1 of 1 customers found this review helpful)

                             
                            5.0

                            This is a great, reliable product!

                            By Satisfied Customer

                            from Long Island, New York

                            About Me Casual/ Recreational

                            Pros

                            • Easy to use
                            • Practical
                            • This always works

                            Cons

                              Best Uses

                                Comments about Odorlos Head Chemical:

                                We have tried various products, but this one is the best. There is a smell only on the first flushing; after that, no smell all weekend. Recommend new package added for every 3 days of usage.

                                Displaying reviews 1-10

                                Back to top

                                Previous | Next »

                                PRODUCT QUESTIONS
                                1 (800) 262-8464