We had a blocked vent stack before. Flushing it with a garden hose is exactly what we did to solve our problem.

forget draino, i used 2 cans of coke when i was renting a basement while i was in college. kind of sad though being a poor student i had to waste 2 cans of coke to do it but it worked :lawl:

care to elaborate y drano is bad?

I had the same problem yesterday!!!... the toilet would NOT unclog at all... this was the powder room. Soo.. I decided to run the associated sink with hot water at full blast.. wait a bit... plunged some more .. and bam, it was unclogged... no idea how or why?!!!

iirc drano and other liquid plumbing chemicals can damage to plastic piping (i.e. eat away at it) and also corrode metal pipes over an extended period of use.

generally they're recommended for "quick fixes" and shouldnt be used on a regular basis.

like others have mentioned, garden hose with high pressure water or a drain snake is the "safer" way to unclog.

This.

Drano can basically eat holes or degrade your pipe.

Be very careful using it in older homes, as it could be the proverbial nail in the coffin for your plumbing.

really? funny how it advertises wont "damage" pvc, plastic, bras etc.

If you flush it out quickly it won't :troll:

Just compressor oil and water can rot metal pipes in sprinkler systems.

Would you buy the product if it stated that it could melt/eat through your pipes?

:troll:

Honestly you should just invest in a drain snake or a drain bladder. You buy them once and use for a lifetime.

As far as I understand it, Drano isn't necessarily bad for pvc pipes (though obviously any corrosive liquid will eventually be bad if used long and often enough), but the glue that's used to piece the different pipes together.

The other thing that might make people think Drano is the cause of leaks is that there may be a clog that's blocked up so hard it's actually preventing a seal from leaking. However, as soon as that shot of Drano is used and cleans out that rather convenient clog, it'll start leaking. Sure, indirectly it may be the cause of the leak, but it's not the actual reason.

i heard a similar reason why i heard you don't get your system "flushed" with pressure (a service a mid sized plumbing company offered to me once). in an older house the pressure could cause leaks in pipes.

drano also generates heat when it reacts with water, thus it can cause the glue to soften and cause a leak