SpannerKL
If the FE wanted to see water checks from all tanks right after a re-fuel he was wasting his and your time. The fuel going into an aircraft is almost always water free. In case it's not the fuel is checked before and during fueling. It's a bit late checking it after the thing is full of fuel!!
As has been said before the majority of water in fuel is as a result of condensation not dodgy fuel.