Drano actually CAN work if the clog is mostly just grease, but it can
and does damage metal pipes too. (because it's acidic). I have not
known Drano to work on hair clogs.
There are other drain cleaners which are nothing but bleach. You're
paying a large price per ounce for the same thing you buy cheaply in
gallons for your laundry use.
Always check the ingredients listed on the bottle.
Grease clogs are better removed with boiling water mixed with Dawn dish
detergent. (Degreaser) But you have to do this when the water still
goes down the drain (slowly). If it's completely plugged, you need a
snake or pipes taken apart.
On 1/14/2015 7:11 PM, email@example.com wrote:
The crystal drano I've seen in the past has been
sodium hydroxide. (which is not acidic). The
hydroxide turns grease into soap. It does react
with some metals (like the metal particles in the
Hydrochloric acid can help with calcium or lime
scale problems. And can react with metals.
Some drain cleaners use sulfuric acid, which I try
The one kitchen drain I cleared for a customer, used
about 15 or so feet of drain snake, that took a while.
When that punched through, I reconncted the Fernco
and poured in some sodium hydroxide crystals, and
ran hot water. Seemed to work.
Christopher A. Young
learn more about Jesus
On 01/14/2015 06:11 PM, firstname.lastname@example.org wrote:
Not acidic, Drano is a Base
and should not harm pipes.
I use one of the lower priced equivalents and it usually does a decent
job. In the 35 years I've been in this house I've only had to call a
plumber on two occasions to snake out a very bad clog.
Never tried it but I think the hot water and dish detergent may not be a
bad idea for something like a clogged toilet
But Drano was obliged (by environmental laws) to
change its formula 20 or 30 years ago (says my chum,
now retired, who worked there half his life) and the
new mixture seemed less effective than the old.
This may be why we now see it less often on the shelf.
My guess is that the idea was that the aluminum shavings "danced around"
as the chemical reaction occurred and "scoured" the walls of the pipe or
And perhaps also that the lye ate up the aluminum preferentially and did
not attack the zinc in any brass fittings.
On Thu, 15 Jan 2015 08:20:24 -0800 (PST), bob_villa
That's the stuff I remember. Which as far as I know, was an acid (the
lye). I have not used any of those chemicals in years. If I cant do
the job with a plunger, snake, or boiling water/Dawn. I take pipes
apart. Most clogs are in the traps under sinks/tubs. But not always.
PVC pipe is less likely to clog than the older steel pipes. (smoother
surface, so crud dont stick to the sides of the pipe as easily).
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