bought a sealey pc100 wet n dry vac last week and it arrived today! lookes really good! thought it would be a handy tool to vac up sawdust after lifting boards, emptying cisterns to change siphons, emptying rads (although its really small , no biger than a small ofice bin) , it also blows , so i was thinking if anybody knew if it would be any good for unblocking sinks??? or any other use people hae for them?