How does CLR Clog-Free Drain work?

CLR Clog-Free Drain is a compressed gas. When the formula in the can is released and comes in contact with water in your drain, it expands rapidly, creating a standing wave. It uses the water in your pipe as a battering ram pushing the blockage through and cleaning the walls of your pipes.

How many applications are in a can?

There are up to 15 applications in one 4.5 oz. can of CLR Clog-Free Drain. Do not hold down can for more than 1 second. If you push down longer then less will be available for use.

What kind of clog will CLR Clog-Free Drain work on?

CLR Clog-Free Drain will work on any clog, including hair, grease, food particles and soap build-up.

How far down will CLR Clog-Free Drain work on a clog?

50’ down a 1.5” diameter pipe, 40’ down a 2” diameter pipe, 35’ down a 3.5” diameter pipe, 25’ down a 4” diameter pipe, 18’ down a 5” diameter pipe

Will CLR Clog-Free Drain harm my pipes?

Even with the capability of cleaning a blockage up to 50 feet away, you can be assured that any sound plastic or metal pipe will not be subject to danger.

Does CLR Clog-Free Drain work on slow moving drains?

Yes! CLR Clog-Free Drain works great on this annoying problem. Simply follow the directions for a blocked drain (as stated on the box or can) ensuring that you fully submerge the green cap in water. Then give CLR Clog-Free Drain a slightly longer application. Your drain will run freely once again.

How often can I use CLR Clog-Free Drain?

We suggest using CLR Clog-Free Drain monthly to keep your pipes free flowing and to prevent obstructions.

Where can I find CLR Clog-Free Drain?

Visit our "Store Locator" section of the website for a complete list of participating retailers.

How do I use CLR Clog-Free Drain?

CLR Clog-Free Drain can be used on a number of different drains. The directions for each type of drain follows. Remember never use CLR Clog-Free Drain in any drains where an acid or lye product is present and never mix Clog-Free Drain with a chemical drain cleaner.

Blocked Sinks and Tubs 1. Fill sink with enough water to submerge cap. 2. Block overflow with damp rag or sponge and hold firmly. 3. Place cap over drain opening and press firmly for one second. Repeat if necessary.

Slow-Moving Drains 1. Place stopper in drain. 2. Fill sink or tub with 6-7” of water, remove stopper. 3. Block overflow with damp rag or sponge and hold firmly. 4. Place cap over drain opening and press firmly for one second. Repeat if necessary. Double Sinks 1. Place stopper in second sink and hold. 2. Follow the same directions as a blocked sink.

Shower Drains 1. Place can’s cap over drain ensuring it’s fully submerged in water. If the water level is not sufficient to cover the green cap, pour water into the cap. 2. Press firmly on handle for one second. Repeat if necessary.

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