Alright, My two main bass' have been left at my drummers house for nearly 3 weeks (since our last gig) we haven't practiced together(sad

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and his house is very humid. In the mean time I just practiced on my Ibanez. Anywho, his house is very humid, and when I got my bass' back the strings on my Warwick were really low and the strings on my 6 string peavey accelerator are touching the fret board. I've always paid to get my bass' set up but I don't have $120 to get the both of them re-setup again. Can anyone give me any help/instruction on how to adjust my truss rods to the proper setting as well as guiding me along on how you porperly intonate my bass'. I would be greatly appreciative of this. I'm in a pickly and I need help.
thanks a bunch
peace
-Ben