Hi just to ask I'm soon going to be changing the valve on my theoben buddy bottle, I will have to remove the old valve which I believe is the standard theoben fitting, Has 3 grooves which I have the adapter, I also have a heat gun if needed, Just wanted to ask what sought of force is needed to remove the old valve, I have a vice which at mo is not mounted to a surface but that can be sorted, I have also got a oil filter removal tool which goes around the filter but I ain't no idea what sort of force would be needed to release the old valve, would heat help in removing the old valve, Any advice would be very helpful, Will be offline shortly but please leave any tips and I will look up tomorrow or when I get back online, Thanks.