Answer: Unfortunately, we do not sell scuba drysuit pee-valves and so we cannot provide you with further information on the same.
No, the penis does not need to be erect for placing an external condom. You can also refer the below article as a guide for external catheter placement -
Male External Catheters - Buying Guide: https://www.healthproductsforyou.com/ar-male-external-catheters-buying-guide.html
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