We have an REI Camp Shelter that is about 10-years old. We love it and it has served us well, but one of the design flaws is that when it rains, the water pools and creates too much weight for the pole structure to support. It happened to us shortly after we got it and one of the plastic "knuckles" broke, but I was fortunate enough to find a replacement part at my local REI (Bloomington, MN). It happened again this weekend on a camping trip and I'm hoping that perhaps there are some replacement parts on the national level as everything else is in good shape. Please let me know if there might be a source for replacement parts.