You're right, of course, David. Policy-wise that has to be the best approach.

However ... I must admit that, in my work for "private" organisations (overseas clinics, and so forth), I have always been successful in bringing flooded pumps back into service ... never needing the yellow* bag, and avoiding the long walk to the incinerator, and what-have-you. Sometimes - but not always - new parts were required.
In some situations it can be a case of "needs must".

You just have to be careful. And I have survived thus far.

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