Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener

Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener

Q: The bottle says 100% lye, and reviewers have said the msds sheet confirms, but when i look at the msds it states 96-100%. did it change? or what gives

96% is about right for industrial-grade chemicals. To get 100% you need reagent grade and will pay for it. So this is lye suitable for non-technical purposes.

Q: Is this cleaner harmful to plastic drain pipes?

In the short term probably not because there is no warning on the container about such a risk. Plus, when I make soap, I dissolve the lye in a plastic bucket, one that I have dedicated to lye solution for soapmaking. I have used the same bucket for a number of years, with no holes forming in it. It is possible that over a period of decades it might be affected. However, when I make lye solution for soapmaking, the solution sits in the same bucket for at least 30 minutes, sometimes longer, whereas drain cleaners are meant to go in and do their job, then get flushed away. So I believe it is highly likely that this drain cleaner will not harm plastic drain pipes.

Q: Will this product kill the good bacteria in the septic system?

It is likely that Roebic lye crystals will kill the good bacteria in a septic system. It would depend on how much lye you pour down the drain or toilet, and the size of your system, and possibly other factors. I am fairly certain I have read more than once that lye is not to be used in septic systems which rely on living organisms to break down sewage. If it is too late and you have used it and killed the living organisms, there is a product you can buy that is supposed to help recolonize or repopulate the system with good microorganisms. Rid-X is one such product. Good luck.

Q: How many cups are in this 60 ounce container?

According to my scale: 1 cup of Roebic lye crystals weighs 9.6 ounces (oz) 2 cup Roebic lye crystals weighs 19.2 ounces (oz) so 60 ounces (oz) should give you 6.25 cups.

Product ID: 6228747

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Details

Brand
Roebic
Scent
Unscented
Item Weight
2 Pounds
State of matter
Solid
Product Benefits
Melts grease

🔥100% Sodium Hydroxide Power

⏱️Fast-Acting Formula

🛠️Heavy Duty Tough Clog Solution

Frequently Bought Together

Roebic HD-CRY-DO 2 Pounds Professional Strength Crystal Drain Opener, 100% Lye, Black

Roebic K-97 Main Line Cleaner: Exclusive Bacteria Digests Paper, Fats, and Grease in Sewer and Septic Systems - 32 Ounces, Liquid

Roebic FRK-1LB Foaming Root Killer: Clear Pipes, Stop New Growth, Safe for All Plumbing - 1lb, White, Granules

Description

🔥 Clear your drains, clear your schedule!

ECO SMART CHOICE - Economical alternative to frequent bottled drain cleaners
SAVE TIME MONEY - Clears tough clogs quickly to avoid costly plumbing repairs
PRECISION USE ONLY - Safe for most pipes—avoid aluminium, lead, zinc, or galvanized metals
KEEP DRAINS FLOWING - Prevents recurring blockages for long-lasting pipe efficiency
MELT GREASE LIKE MAGIC - Professional strength lye formula dissolves stubborn kitchen grease fast

Roebic HD-CRY-DO-6 is a 2-pound heavy duty crystal drain opener featuring 100% sodium hydroxide for powerful, fast-acting grease and clog removal in kitchen sinks. Designed for professional strength performance, it efficiently melts tough blockages to restore optimal water flow, saving time and costly repairs. Not suitable for toilets, garbage disposals, or certain metal pipes.

Specifications

Manufacturer	Roebic Laboratories
Part Number	HD-CRY-DO
Item Weight	2 pounds
Product Dimensions	2.25 x 4.5 x 7.75 inches
Country of Origin	China
Item model number	HD-CRY-DO
Is Discontinued By Manufacturer	No
Size	100% Lye
Color	Black
Material	Plastic
Item Package Quantity	1
Included Components	2-Pound Heavy Duty Crystal Drain Opener
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

The bottle says 100% lye, and reviewers have said the msds sheet confirms, but when i look at the msds it states 96-100%. did it change? or what gives

Is this cleaner harmful to plastic drain pipes?

Will this product kill the good bacteria in the septic system?

How many cups are in this 60 ounce container?