My MIL maintains nappies should be white and white only But she has never and will never be left alone with Ben let alone change a nappy. My mum will quite happily change him but I don't think she has done a pooey one.
Thanks everyone. Must admit I'm quite glad to hear it's not just me! Will give the flushable liners a go (don't know why I didn't think of that before), after that it's up to her if she wants to rinse them till they are spotless.
MIL doesnt think much of mine either Ive put some BGs in the change bag before and they just confused her!! She "wasn't sure what to do with them" Mum uses sposies on her too, but she buys them and theres nothing I can do to stop her so I just carry on with it.
Give the paper liners a go, hopefully they do the trick!