Liquid Lightning Drain Opener
Liquid Lightning® is a industrial-strength virgin sulfuric acid drain opener. This drain opener is safe for use in sinks, bathtubs, and shower drains when used as directed. Follow the usage instructions to watch Liquid Lightning work through tough clogs in minutes. This product will not harm septic tanks or PVC pipes. Wear protective equipment in order to safely use this industrial-strength drain cleaning product.
AVAILABLE SIZES
32oz (1 quart)
• Up to 2 applications per bottle
1/2 gallon (1.89L)
• Up to 4 applications per bottle
Available for purchase at Walmart and other retailers
Additional Details
- Industrial strength virgin sulfuric acid drain opener
- Designed for use in sinks, bathtubs, and shower drains
- Works to dissolve hair, soap, food, grease and other organic obstructions
- Will not harm septic tanks or PVC pipes
- Protective equipment is needed for safe use
This is a fast-acting industrial strength drain treatment that dissolves obstructions in about 15 minutes. This drain opener is safe for use on septic tanks, sinks, tubs, and other bathroom areas when used as directed. Follow the usage instructions to watch Liquid Lightning work through tough clogs in minutes.
Read all label information prior to using this product. Do not use without protective gear.
- Bail to reduce water level, down to the drain opening.
- Remove strainer from drain if possible.
- Before pouring, place a plastic bucket or large, deep, plastic container under the drainpipe to protect from possible leakage.
- After pouring this product into the drain, immediately place inverted dishpan, plastic bucket or other deep plastic
container over the drain (or bowl) opening, to protect against possible eruption or drain contents and acid.
See chart to determine the amount of product to use. - At arms length, slowly pour product directly into the drain opening (See discoloration warning).
- If drain does not clear, repeat application. Not intended to be left overnight.
| Fixture | Amount | Wait Time | Flush Drain (cold water) |
| Sink, bathtub or shower | Pour 16-20 oz. into drain | 15 minutes | 5 minutes |
| 6″ – 8″ drains | Pour 16-20 oz. into drain | 15 minutes | 5 minutes |
When transporting, handling and storing product make sure it is in an upright position, capped securely and stored in the original plastic bag.
- Individually bagged in a chemical-resistant, resealable bag for added safety
- Safety cap and compression seal
- Labeled with directions and safety precautions
- Manufactured in the USA
100% Guaranteed to work or it’s free. When used as directed, we guarantee that Liquid Lightning will clear the toughest clogs in sinks and drains. If Liquid Lightning Drain Opener did not perform as expected on the removal of your drain clog, click here for a refund.
Is sulfuric acid safe to use on my pipes?
Yes, sulfuric acid is safe for most household plumbing when used as directed. It quickly dissolves clogs without damaging PVC pipes, though it should never be mixed with other drain cleaners and should always be handled with care.
What is the difference between sulfuric acid and other products like sodium hydroxide?
Sulfuric acid drain cleaners, like Liquid Lightning, work by aggressively breaking down organic matter through powerful chemical reactions, making them fast and highly effective…
Frequently Asked Questions
Got questions? You’ve come to the right place! Learn more about Liquid Lightning products and safety.
Satisfaction is guaranteed!
When used as directed, we guarantee that Liquid Lightning will clear the toughest clogs in sinks and drains.