Zanussi DWS939 IWMS replacement

I have successfully managed to clean the blockages in my IWMS (integrated water management system) on my Zanussi DWS939, PN911883003, however I have unfortunately misplaced my note on where 3 of the hoses go back on. Basically there are three hoses at the bottom front of the machine which attach to the IWMS which from the Zanussi spares site are lines for the following,

1) Pressostat (goes to the pressostat module)
2) Drain Pump (goes to the pump assembly)
3) Air chamber (small ~ 4″ capped red pipe)

The hoses attach to the IWMS in a vertical line of three locations.
Can anyone tell me the order in which these pipes need to be replaced?
I really do not want to have to buy a service manual for the machine if I can help it as I am sure that the blockages were the source of my problems (machine stopping mid cycle), and the rest of the re-assembley is simple.

Thanks in advance,

Mark.