Servis 1100 ecocare – blocked soap box

Have just mopped up masses of water from around my machine and discovered that the leak is actually coming out at the front underneath the powder drawer. Having removed the drawer I can see that the pipes or whatever channel is used which take the washing powder etc down to the drum must be totally blocked and the water isn’t moving. A kind adviser has suggested removing the top to see if I can get at the pipes but as the machine is so wedged into position I wonder if there’s another way of cleaning them from the front.

One odd thing is that when I scooped out some water from the soap box there was masses of black gunge and a few other bits of grot such as dog biscuits in there -very soggy ones! How could that have happened assuming that particular section is just to take powder etc from the drawer into the drum? Strangely enough I never put dog biscuits into the washing machine powder drawer! I usually blame mice for odd things like this happening in my house but can’t see how even they could’ve achieved this!

Thanks for any advice.

Elizabeth