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frontpageKatManDude posted May 14, 2026 3:09 PM

Costco Members: 26.5-lb Nellie's Laundry Soda (800 Loads)

$70

$90

22% off
+ Free S&Hat Costco Wholesale
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Deal Details
Costco Wholesale has for their Members: 26.5-lb Nellie's Laundry Soda (800 Loads) on sale for $69.99. Shipping is free.

Thanks to Community Member KatManDude for sharing this deal.

Details:
  • Nellie's Laundry Soda is safe for HE and standard washing machines and our products are phosphate free, fragrance free, hypoallergenic and septic safe.
  • How To Use: Use one tablespoon of Nellie's Laundry Soda for each regular sized load. Wash according to instructions on garments. Always test on garments that may bleed or fade.
  • Ingredients: Sodium Carbonate, Linear Alcohol Ethoxylate, Sodium Chloride, Sodium Metasilicate

Editor's Notes

Written by citan359 | Staff
  • At the time of this posting, our research indicates that this is $40 lower than the next best comparable online prices starting from $109.99.
  • Rated 4.8 out of 5 stars from customer reviews.
  • $20 manufacturer's savings is valid 5/1/26 through 5/31/26. While supplies last. Limit 5 per member.

Original Post

Written by KatManDude
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: 26.5-lb Nellie's Laundry Soda (800 Loads) on sale for $69.99. Shipping is free.

Thanks to Community Member KatManDude for sharing this deal.

Details:
  • Nellie's Laundry Soda is safe for HE and standard washing machines and our products are phosphate free, fragrance free, hypoallergenic and septic safe.
  • How To Use: Use one tablespoon of Nellie's Laundry Soda for each regular sized load. Wash according to instructions on garments. Always test on garments that may bleed or fade.
  • Ingredients: Sodium Carbonate, Linear Alcohol Ethoxylate, Sodium Chloride, Sodium Metasilicate

Editor's Notes

Written by citan359 | Staff
  • At the time of this posting, our research indicates that this is $40 lower than the next best comparable online prices starting from $109.99.
  • Rated 4.8 out of 5 stars from customer reviews.
  • $20 manufacturer's savings is valid 5/1/26 through 5/31/26. While supplies last. Limit 5 per member.

Original Post

Written by KatManDude

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61 Comments

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May 17, 2026 1:16 AM
4.4K Comments
Joined Mar 2006
cccheelMay 17, 2026 1:16 AM
4.4K Comments

Our community has rated this post as helpful. If you agree, why not thank cccheel

Quote from toastedwhitebread :
7 big 115 load jugs of Purex are $42 at Walmart by me (they have $3 Walmart cash back instant rebates on each jug) and that gets you 805 loads.
https://www.walmart.com/ip/Purex-...s/23717464
Purex is also filled with nasty chemicals and fragrances which some people try to avoid.
2
Pro
May 17, 2026 1:44 AM
2.5K Comments
Joined Mar 2011
toastedwhitebread
Pro
May 17, 2026 1:44 AM
2.5K Comments
Quote from cccheel :
Purex is also filled with nasty chemicals and fragrances which some people try to avoid.
Nellie's Laundry Soda contains Linear Alcohol Ethoxylate. The manufacturing process (ethoxylation) can leave behind traces of ethylene oxide and 1,4-dioxane. Ethylene oxide is classified as a known human carcinogen, and 1,4-dioxane is a suspected carcinogen.
1
1
May 17, 2026 2:24 AM
750 Comments
Joined Mar 2021
VorinclexMay 17, 2026 2:24 AM
750 Comments
Quote from PM-Me-Your-Coupons :
Septic safe?
Literally says in the Costco page it is.
May 17, 2026 2:28 AM
6.9K Comments
Joined Oct 2010
joshuaNHMay 17, 2026 2:28 AM
6.9K Comments
tide unscented... is the only one for me. BUT.....

Nellie's Laundry Soda is completely scent-free and fragrance-free.

WOW... I like this soap, if I was single I would buy it right now. With a family... I am stuck with Tide and will pay about 6 times more.
Last edited by joshuaNH May 16, 2026 at 07:32 PM.
May 17, 2026 2:54 AM
25 Comments
Joined Aug 2025
forumenterMay 17, 2026 2:54 AM
25 Comments
Quote from toastedwhitebread :
Nellie's Laundry Soda contains Linear Alcohol Ethoxylate. The manufacturing process (ethoxylation) can leave behind traces of ethylene oxide and 1,4-dioxane. Ethylene oxide is classified as a known human carcinogen, and 1,4-dioxane is a suspected carcinogen.
Any thoughts on using Borax in a mixture of Laundry Soda and Borax? Would just Laundry Soda suffice?
May 17, 2026 3:31 AM
6.4K Comments
Joined Mar 2013
4SKZ8May 17, 2026 3:31 AM
6.4K Comments
Quote from starun1611 :
What can be added along with it to make it more efficient?
Borax, Arm & Hammer Super Washing Soda, oxyclean
May 17, 2026 4:19 AM
172 Comments
Joined Mar 2007
JayrceeMay 17, 2026 4:19 AM
172 Comments
This is really awful detergent. It definitely doesn't clean clothes unless your clothes aren't that dirty to being with. There are much better options out there.
1

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Pro
May 17, 2026 4:44 AM
2.5K Comments
Joined Mar 2011
toastedwhitebread
Pro
May 17, 2026 4:44 AM
2.5K Comments
Quote from forumenter :
Any thoughts on using Borax in a mixture of Laundry Soda and Borax? Would just Laundry Soda suffice?
I don't know. I feel safe using dye and scent free purex or tide and have never made my own.
May 17, 2026 12:31 PM
200 Comments
Joined Jun 2019
Johann1900May 17, 2026 12:31 PM
200 Comments
Quote from odie5533 :
No enzyme cleaner ingredients, means it won't work well on sweat, oil, food, stains, etc, and won't work well in cold water. And it doesn't have an oxygen bleach.
What if you add some dawn dish soap? Would that help get that other stuff out when you need to?
May 17, 2026 2:54 PM
478 Comments
Joined Jul 2007
crimedogMay 17, 2026 2:54 PM
478 Comments

Our community has rated this post as helpful. If you agree, why not thank crimedog

I just placed my order for my 2nd bucket of this... my first lasted me ~33 months (family of 5 with 3 young ones.) I paid the same price in 2023 at Costco and highly recommend it.
2
1
May 18, 2026 1:54 AM
95 Comments
Joined Dec 2016
clearedMay 18, 2026 1:54 AM
95 Comments
Quote from SKV4m :
Borax, Arm & Hammer Super Washing Soda, oxyclean
When I was mixing my own, that was my combo. Cleaned very well and little to no scent.
1
May 19, 2026 4:55 PM
805 Comments
Joined Dec 2018
ChristianMcCMay 19, 2026 4:55 PM
805 Comments
Quote from DIW90210 :
300 loads for $6! A true Slickdeals cheapskate's dream come true.
https://youtu.be/SNzuRrTpONY?si=_MI98-BUG8jsNnQJ
Thank you so much!
May 20, 2026 9:50 PM
125 Comments
Joined Jul 2018
SLPL7May 20, 2026 9:50 PM
125 Comments
Quote from DIW90210 :
This is a great deal if you're just washing clothes to get sweat and smells out, not intended as a heavy stain removing detergent which many dedicated detergents already specialize in. The OxiClean powder tubs from 2019 and earlier used to be absolutely amazing at lifting stains. Unfortunately, the recent tubs I've bought feel severely diluted and barely remove anything. It really feels like they are cutting corners on quality now.
The active ingredient in OxiClean is sodium percarbonate. You can buy that in bulk and use about half the amount for the same result.
1
May 24, 2026 9:14 PM
611 Comments
Joined Jun 2020
DIW90210May 24, 2026 9:14 PM
611 Comments
Quote from Hawk2007 :


Eh, too much work, but I agree... there is really not that much to detergent. Plus, most detergent scoop cups recommend way more product than you actually need... b/c the more you use, the more often you'll buy a replacement bottle.

Personally, my go-to is the powdered detergent at Costco/Sam's that's usually like a 20-30 lb bucket for $20 or so. For clothes I wear, I detest scents. The Mountain Breeze and other stuff just smells so fake to me. These powdered detergents work fine to take out all of the sweat smells from clothes, as well as most of the dirt. I don't really soil clothes too much in terms of dirt.

However, for linens and towels, I actually do like the scents... so I have Odoban or scented detergent I use depending on how I'm feeling (different smells... I mix it up).

In the event stuff is really dirty.. mainly whites... I have Oxiclean that I'll soak them in overnight.

In terms of pods... thoroughly detest those things b/c I feel like they're money grabs for convenience. I do still buy pods though b/c when I travel, I have a small rubbermaid container I can put about 11 pods in to do wash in sinks and bathtubs on the road.
Modern washing machines don't dissolve powdered detergent as efficiently as older models, which can leave white residue on dark clothes. To prevent this, I always dissolve my powder in a cup of hot water before adding it to the drum. When traveling, I pack my powder in a double-ziplock bag to avoid messes. While laundry pods are surprisingly effective, they're just too expensive per load for everyday use.

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May 24, 2026 9:19 PM
611 Comments
Joined Jun 2020
DIW90210May 24, 2026 9:19 PM
611 Comments
Quote from SLPL7 :
The active ingredient in OxiClean is sodium percarbonate. You can buy that in bulk and use about half the amount for the same result.
Who sells bulk sizes really cheap? Amazon seems to be pretty pricy, 2lb bag goes for around ~$16

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