My C&C 27 doesn't have gray water tankage. If I took extended cruises
where fresh water was going to be in short supply, I would have gray
water tankage, along with a system for recycling it. I would also take
a bigger boat. For 7-10 day jaunts around the LIS, it's not an issue.

I'm surprised the 27 has any tankage. I know plenty of people who cruise long
distance. They don't have gray water tankage. They have watermakers!
Grey water goes over, dummy!

RB