And fuel is so much more expensive in Europe than the U.S. An RO DI system would pay for itself...Haha... i should have taken into account my water bill. I'm too lazy to make salt water so I drive 56 mile round trip once a week to buy salt and RO water. At £15 for 50 liters of salt and £3.75 for 25 liters RO water. On top of that i always get fast food on the way home thats around £12 and taking into account the fuel...... i hate it when someone reminds me of how expensive this hobby is.