leaking
when you replaced the lines did you replace the copper washers. if so one should be above and one should be below the opening on the hose. if you did some new washers leak. sometime replacing the old washers solves this. other possibilities may be a worn wheel cylinder or a bad seal on a caliper. if you can give me a description as to roughly where the fluid is coming from maybe i can help you.
when you replaced the lines did you replace the copper washers. if so one should be above and one should be below the opening on the hose. if you did some new washers leak. sometime replacing the old washers solves this. other possibilities may be a worn wheel cylinder or a bad seal on a caliper. if you can give me a description as to roughly where the fluid is coming from maybe i can help you.