Can this phalaenopsis be saved?

[orchidaus]

Thanks all I followed your advice and 3 months later there is progress! I have a root tip budding and a new leaf trying to grow from the centre.
I have been too nervous to do much to it other than run spring water over if it looked to sad (once a fortnight or so) and kept it in a glass with the LECA in a bag with a couple of holes in it.
I have just done an inspection and the old roots are looking terrible, soggy and mouldy.
And tips again as to what to do? I’ll attach some pictures.