• Just poor the caustic in through the BB junction. It will be fine.

    Maybe.

    Gave me a chuckle this did. I've got a frame here that needs some caustic. Keep putting it off. Winter project maybe.

    Summer's better. Winter slows the reaction too much. Although it's fairly warm right now.

    Agreed with BB comment. Some people do it this way. Had I not hacked the end off, that's what I'd have done. Much more likely to damage the paint pouring in the caustic soda however as it won't have a direct path. Presumably can use a hose or a funnel...

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