if(Pstream::master())
            {
                Info<< "Free surface flux: sum local = "
                    << sum(mag(phi.boundaryField()[interface.aPatchID()])) 
                    << ", global = "
                    << sum(phi.boundaryField()[interface.aPatchID()]) << endl;

                Info<< "Free surface continuity error : sum local = " <<
                    sum
                    (
                        mag
                        (
                            phiNet.boundaryField()[interface.aPatchID()]/
                            interface.rhoFluidA().value()
                        )
                    ) 
                    << ", global = " <<
                    sum
                    (
                        phiNet.boundaryField()[interface.aPatchID()]/
                        interface.rhoFluidA().value()
                    ) 
                    << endl << endl;
            }