I know what is be doing with it !!! Dump it back in they're yard and change breedWe have had this problem with a new Kramer, you can rock the third service switch to release the pressure but by the time you got out to the grab it’s built up pressure again. Sorted this week after some moaning to Kramer by fitting a pressure dump switch on the boom, the difference it has made has been dramatic. What was a bitch of a job is now easy, it was so bad we did think we were going to reject the Kramer over this issue. However they have told us we have to pay for this button which in my opinion should have been standard and it’s not cheap.