DIYbanter - View Single Post - Blocked Bathroom Pipe

On 21 Jan 2005 05:10:55 -0800, (Chris Davies) wrote:

Having
looked at the posts to this group, it seems that I should put a
quantity of diluted caustic soda down the sink in question with a view
to it disolving the blockage. Does that sound correct?

Maybe. Caustic soda is good on fats in kitchen sinks. For hairballs,
conc. sulphuric acid drain cleaners may work better.

I've also recently seen, but not yet used, some US product that
claimed to be an enzyme good at removing these partial slow-flow
blockages. The caustics are good at a real "bung", but they may flow
past something that's merely a narrowing.