id summary reporter owner description type status priority milestone component version severity resolution keywords cc 339 culvert flow not conserving flow steve Ole " Just noticed that one of the unit tests in test_culvert_class was actually failing (but the allclose test was passing as the relative error was 1.0e-5). The test is checking for conservation of water, and so we really want this to be essentially close to zero. I have now changed the relative tolerance on the tests checking for conservation to rtol = 1.0e-10" defect closed normal ANUGA maintenance Testing and validation normal fixed