Heavy Duty Drain Opener (Yellow Bottle)

10 times stronger than common drain openers

Our Heavy Duty Drain Opener is the economical treatment for bathroom and kitchen drain clogs.

We recommend that Heavy Duty Drain Opener be allowed to stay in the drain overnight.

The longer it remains in the drain the more drain clogging matter it will dissolve.

Available Sizes:
1 Liter  •  2 Liters
Download Product Safety Data Sheet (SDS) US-SDS NO. 1870 & NO. 1871
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Wear safety goggles to protect from possible eruption of Lye. Remove standing water. Pour drain opener slowly, directly into drain. Repeat if necessary.


Slowly pour 2 cups directly into drain. Wait at least 1 hour before flushing with hot water. Overnight is best. Instant Power will continue to dissolve hair deposits as long as it is in the drain. If the clog is further down the drain pipe, more Instant Power will be needed to reach the clog.


Always keep bottle on stable, flat surface and hold by handle. Do not squeeze sides. Doing so may cause eruption of liquid. Remove cap by pressing down and unscrewing. Use a sharp instrument to completely remove seal by gently cutting out from the inside of neck. Always replace cap after use. If liquid comes in contact with your skin, refer to first aid instructions.


For the first application use 2-4 cups, if this does not clear the clog use more product.

Have Questions?


What is it used for?

Used to dissolve hair and grease clogs from any drain

What is it not used for?

Do not use in the garbage disposal. The product may damage non-stainless steel garbage disposals. Do not use in toilets. If it overflows it may cause safety issues.

Is the product safe for septic systems?

If used as directed it is safe for use with septic systems.
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Ratings & Reviews

 2.75 out of 5

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Make it part of your clean routine

Add Instant Power® ECO Clog Preventer to your cleaning routine along with your cleaning supplies. Pour 4 ounces into all your drains and let it sit overnight. Do not rinse. Repeat this procedure every 2 weeks and your drains will stay fresh and clean.

Love Mother Earth

When it comes to our planet, we love it as much as we do a clean drain. That’s why we created this specially formulated blend of microbial enzymes that do a great job of gobbling up all the goop.

Family comes first

Our ECO Clog preventer is safe for families, pets and the earth. The reason? We use enzymes that quite literally eat all the gunk. We use no caustic chemicals in our ECO formula.

Super-charged microbial blend

When we say supercharged, we’re not kidding. We have 4 times the amount of enzymes than any other formula. That means we are very effective in keeping your drains clean and free-flowing.