We are trying to fit a plastic speed fit elbow 15mm onto our water pipe in our bathroom in order to connect a new shower unit to it. However we cannot remove the old copper washer used with the existing fitting :? - (I think it's called an adaptor?)
We cannot use the existing fitting as we have had the walls plastered & re-iled (they needed it!) & this has resulted in less space between the shower unit & wall. The speed fit connector gives us the extra centimeter we need to get the shower back on for a perfect fit!
We have tried everything to get the washer off but to no avail, any advice offered would be greatly appreciated.