I am a new member here and I really appreciate any advise... my kichen sink clogged, it is a 1.5" pipe (short) connects to a 2" pipe then to a 3" pipe. A plumber came this evening to try on it. He used a 1/4" power auger reached the clogs at the end of his 25 feet cable, but just not long enough to go through it, and he know the clogs is in the 3" pipe. He doesn't have anything longer so told us to call some bigger plumbing company. I wonder if I can try to use 3/8" manul snake I myself? I can buy one or rent one 50 feet long. Is this size will be too big for these pipes? This is the first time I am trying it... Thanks a lot!