Never again - according to Mr. D. M. all hoses and...

Never again - according to Mr. D. M. all hoses and the rubber collar of the porthole must be exchanged - cost 521.00.
I have cleaned all hoses and the air trap - time required 45 min the machine is running again 1a.
The bill for 119.00 for unscrewing the machine is a joke and borders on fraud.