I've already started a thread on chat, but was pointed here.
I'll copy & paste my thread from chat.
The outside drain which carries out waste water from my kitchen sink and washing machine is overflowing.
I went to unblock it, usually it's just leaves, and have found it full to the brim with what looks like crap, probably mud.
Firstly I have NO idea how this is even possible.
More urgently how do I deal with it, shovel out the crap?
Pour a tub of caustic soda down it?
Please help.
It's utterly disgusting & I need to fix it immediately.