Hi, I'm inexperienced with plumbing but keen to give it a go... also female so don't have man strength or many tools, but have a few! My toilet makes loud foghorn pipe noises after flushing that is resolved when I lift up the ballcock arm. I think the washer may need replacing (after googling it), but I think it might be easier for me to replace the whole ballcock/valve thing. Two questions: 1. is it easy enough for for an inexperienced (though very practical) person like me to tackle? 2. What tools will I need? I think I need a tool/spanner to undo the plastic nut underneath the cistern, anything else? Thanks for any help! I could call a plumber but I'd feel annoyed it it's a simple job that I could manage!