Best fit model to O VII triplet. The data are shown in black. Shown in red is the best fit including absorption from X-ray WA components B and E (C-statistic = 82, for 43 d.o.f). Shown in blue is the best fit with no absorption (C-statistic = 104, for 43 d.o.f). In both models the outflow velocities and line widths of all three triplet lines are coupled together. The outflow velocity, line width and normalisations were left free to vary to find the best fit for each scenario.