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be prepared to trash the paint and fix it after.
Paint on the seat tube looks pretty bubbly already
Guessing it has been heated up in some way already
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it's ok in the drain
Could you alter that to 'foul water drain/sewer',
i.e. tip the liquid down the toilet/wc?Many parts of London, and elsewhere in the UK, gulleys and grilles at the kerb in the roadway
drain into local watercourses. Streams and rivers won't be able to cope with the influx of aluminium salts
psg1ben
mespilus
@Ndeipi
Caustic soda works but be prepared for a faff. And be prepared to trash the paint and fix it after. You'll need a decent container and a way to secure the frame upside down inside it. Long plant pots are good like the below from Wilko but obviously check they have no holes.
Other than that... Work outside, wear gloves and glasses, be prepared for lots of foam to happen (only fill plant pot half way). If the frame feels hot then it's working, when it cools you need change the fluid. Which is really horrible shit. I got some on the grass and it burned a hole, didn't grow back for many weeks. But it's ok in the
draintoilet because it's essentially drain cleaner. Just use lots of water to flush it.(edited from drain to toilet, because drains lead to watercourses and they won't like the aluminium salts)
You might be able to do it in one or two baths. If you're filling a seat tube with fluid then it can't hold as much, so it gets spent quickly and then needs changing a few times.
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