Liquid Lightning Drain Cleaner, 32 Fluid Ounce
Liquid Lightning Drain Cleaner, 32 Fluid Ounce
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Liquid Lightning Drain Cleaner, 32 Fluid Ounce

698 ratings

Key item features

  • Fast Acting: Liquid Lightning Drain Cleaner quickly dissolves obstructions in your plumbing.
  • Versatile Use: Safe for septic tanks, sinks, tubs, toilets, and other bathroom areas.
  • Easy Application: Simply pour the contents into the sink to remove clogs and blockages.
  • Multiple Options: Available in a single 32 oz bottle or a convenient 2-pack.
  • Household Essential: Ideal for use in homes, offices, or any place with a bathroom.
  • Storage Friendly: Can be stocked and stored in a cabinet or on a shelf until needed.
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Customer ratings & reviews

4.3 out of 5 stars
stars
698 ratings320 reviews
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Reviews summary

Neutral

  • : Unit clears hair and grease fast but fails on some toilet clogs.

Cons

  • : The formula did not clear clogs after a full bottle.
  • : It does not clear clogs and leaves residual stains on surfaces.
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Showing 1-3 of 320 reviews

May 30, 2025
Reviewer name: anonymous
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

The ONLY drain cleaner that WORKS!

After I tried "Professional Strength" drain cleaner, and my apartment maintenance guy then tried their drain cleaner...my tub was still filling up with water while showering (mid-calf height). I had used this stuff years ago, and really had to search it out - straight-up sulfuric acid - this stuff WORKS - eats/melts the hair clogs like magic (you can hear it sizzle when you pour it in the drain). Tub no longer fills up with water while showering !!! Definite THUMBS UP! (NOTE: It can burn you - be very careful with it - and I close/seal the drain after I put it inside to let it do its thing for about 15-30 minutes... use it VERY sparingly as it only takes a LITTLE (like an 1/8th of a cup). Too much and you will have caustic fumes consuming you bathroom, possibly your house!)

Helpful?1SKO3NBHTTK917133944
Jul 25, 2026
Reviewer name: Shane
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great liquid drain opener

I've never had luck with liquid drain chemicals. I've always used lye crystals because of that. But… this product may work better than lye. Only downfall is a sulfur egg smell when flushing drain with water. This product did clear my drain very effectively. I will purchase again when needed.

Helpful?1SKO3NBHTTK917133944
Apr 17, 2025
Reviewer name: anonymous
Walmart Associate
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works great!

My sink has been stopped up for far too long, longer than I want to say. I used this plastic stick for clogs idk what it's called, then poured the liquid down the drain. It has unclogged the drain. It smells bad, it steams, it broke down and kinda melted the material that was stuck in the drain, and bubble up what was stuck 🤮. So happy to find something that actually worked bc I didn't want to have to pay a Plummer.

Helpful?1SKO3NBHTTK917133944
Current price is $12.4438.9 ¢/oz
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