I got a bong about a month ago and tonight I decided the female piece and slide were due for a cleaning. So I grabbed a few poking/scraping tools and went at scraping the resin out (I'm too lazy to clean it the proper methods). While I was diggin in the female piece I started noticing a white substance in the res. It was in little chunks throughout the piece and some of them were actually big and entirely white with resin coating. It kind of feels like res but when I break it open it breaks into sticky powder. What the fuck is it? I put fresh water in the bong every 2-3 days that I use it so I don't think it's a crazy bacteria my bong created.
My guess hard water build up, hell i dunno that kinda odd, pics would help. Thats sick if you used the same water for over a month, should change it at least every few days.
Sounds like you have shitty water in your town lol.. I always use bottled water for my pieces because of that same problem.. I had the same problem with my bongs and i switched to bottled water and the problem was solved..