I haven’t forgotten about this. I have just come back from holiday today. I think the best thing to do is to replace these 2 tubes FOC on this occasion as a gesture of goodwill. We cannot take responsibility for the breakages as we do not know if they were damaged in transit or by the handling by the customer. I will arrange to have 2 replacements made. The carriage and import duties etc. must be borne by the customer. Please confirm if this is ok? One thing is puzzling me however. The original tubes were sent our on an urgent basis by air-freight but they were put near the forehearth for one month before installation. It does not sound like the tubes were required urgently.
Best regards