I'd got them on the wrong way round :P
Just changed them, but realised I've made a booboo :P
I just took them off and screwed them to the other part, but didn't tip the water out that was left in the chambers from when I was rinsing them through. Therefore, the water that's currently in the carbon chamber will never go through the sediment filter, if you get me. And the water in the sediment filter has already been through the carbon, and will go through again :P So the next time I RO
some water, the first part of it won't have gone through the sediment filter.
Will this be a problem? I've just put my unit back together again and don't really want to mess with it again!