By water raids you mean joining and poking in a Water Ragnarok disaster raid right? Also, what should I be doing with random N/R weapons? I've been using the water ones and enhancement material ones to enhance my SSR weapons (for Snow Raphael and Eros) but have a lot of extra N/R ones clogging my inventory. Should I still be using them to enhance other weapons or just sell them for gems?
On that note, should I use all my jewels right now to max out my inventory space?