- I am considering adding another faucet to the galley of my O'Day 25. I sail on Lake Superior so the water is clean enough for washing/doing dishes, etc. I'd like to keep the standard water tank fed faucets but add another foot pump & faucet to pull water from the lake. Has anyone done this? Do I need to add another through hull for an inlet? The faucet drain has a through-hull right there but I suspect that may be problematic to use a drain for a inlet also. Thoughts and/or suggestions?