I second this.
The K4 has a watercooled motor anything lesser is aircooled. Most electric are around 2400psi. Petrol ones are about 1000psi stronger but you dont really need that and if you have any scrapes in the lacquer its only going to get worse. The K4 is pretty compact and if you buy the sand blasting head is good for cleaning bits of corroded metal etc. You can also get the water butt attachment. Anything under about £500 is likely to have plastic parts in the pump and max water temp is limited to about 40 degrees. A metal pump will hander much hotter water. Oh and they dont like hozeloc auto shut off connectors
