Join Date: Mar 2007
Thanked 4 Times in 3 Posts
Rep Power: 10
If you're certain the first noise isn't coming from within you own hull, then my guess is that you are hearing a neighbors electric water or head pump. Electric heads are very noisy, and in my experience seem even louder outside of the boat they're installed in than inside.
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Pacific Seacraft Crealock 31 #62
NEVER CALLS CRUISINGDAD BACK....CAN"T TAKE THE ACCENT