I have had the same issue with my Spindrier model SCM.

The drain hose for the spin tub developed 2 long slits.

I carefully removed it from the machine so as not to make it worse. I had
some Flex Tape and decided to try that. I cut 2 long thin pieces to cover the
slits. I then cut strips to wrap the rest of the hose and the 2 patches to try
and re-enforce the entire hose.

So far, no leaks.

The wash tub hose is OK for now, so I left that alone.

I know you are aware these are that rare material unobtainium, so I wish you good luck in finding

a solution. This worked for me, for now, but I may be in the same boat again in the future.

Oh, if you decide to try this, Flex Tape is VERY sticky.  Once it's on it's not coming off.

Bill