Previous discussions seem to have concentrated on abseiling - there is "only" a 30% loss of strength in static situations, so less than most knots (don't know if any testing of wet knots has been done) & unlikely to cause a problem (provided an anchor doesn't fail):
https://ukcaving.com/board/index.php?topic=11886.0
However, dynamic strength can reduce by 70%, even when just damp! & number of falls before failure reduces. So, cowstails & lead climbing ropes, or failed anchors are much more of a issue & the rope should be retired after holding a major fall in the wet. Fortunately the strength returns once dried sensibly:
https://www.climbing.com/skills/wet-rope-myths-debunked/
Mike
https://ukcaving.com/board/index.php?topic=11886.0
However, dynamic strength can reduce by 70%, even when just damp! & number of falls before failure reduces. So, cowstails & lead climbing ropes, or failed anchors are much more of a issue & the rope should be retired after holding a major fall in the wet. Fortunately the strength returns once dried sensibly:
https://www.climbing.com/skills/wet-rope-myths-debunked/
Mike