blocked drain with rubber

[saffie&indie]

After emptying a hot water bottle down the bathroom sink a couple of times I now find it is completely blocked with the bits of rubber which come out with the water. I have tried everything available off the shelf including sulphuric acid. The sink is boxed in and tiled so getting to it that way is a last resort.

[Bev2007]

Speaking as a one time polymer scientist, I agree with cleversod, the only things that might dissolve crosslinked natural rubber,
a. you wouldnt be able to get 'over the counter'
b. you wouldn't want to anyway

You need a)new ater bottle and b) a mechanical (not chemical) way of unblocking.

If a plunger doesnt do it (you can make a home made one from a plastic bottle with the right neck size), one of those bendy stick things might work since it is lots of little bits wedged together. Have you got a bit of hose?

[Dagman]

Have you tried a flexible grabber, you can usually get one on a market for a couple of pounds. It is about 2 foot long with a red handle at one end and a claw at the other, the long part resembles a tight spring. When you squeeze the handle the claw comes out, release and the claw grabs.

[Dagman]

Should mention they are usually amongst the tool stalls.