  We study open boundary conditions for the $D^{(2)}_3$ spin chain, which
shares connections with the six-vertex model, under staggering, and also to the
antiferromagnetic Potts model. By formulating a suitable transfer matrix, we
obtain an integrable, open Hamiltonian, hence allowing for us to classify
different regions of the underlying conformal field theory from eigenvalues of
the Hamiltonian.
