Strange question (sorry) but I know one of you out there will be able to give me an answer to this:
When I had my new bathroom fitted, I questioned the inspector as the lid will not lift off my "cistern" thingie at the back of the toilet (technical description that!!) I wanted to put them loo-blue efforts in. I was told that you are not meant to be able to lift them off so just said oh ok. Later wondered if this was right or not, what if there was a problem and a plumber needed to get to the bits inside?? Should you be able to lift the lid off?? Please can someone tell me, I want blue water
When I had my new bathroom fitted, I questioned the inspector as the lid will not lift off my "cistern" thingie at the back of the toilet (technical description that!!) I wanted to put them loo-blue efforts in. I was told that you are not meant to be able to lift them off so just said oh ok. Later wondered if this was right or not, what if there was a problem and a plumber needed to get to the bits inside?? Should you be able to lift the lid off?? Please can someone tell me, I want blue water

is it a new smaller cistern? i know my sister has one like that thats fixed on, its all one unit isnt it, just buy some blue bleach, that should sort yer problem out 
you can get cream for that 
Can't be bothered looking it up