My father in law has a Daystate QC Mk2, Filling it with air is/was an issue. I joined and posted on a Daystate forum and they pointed me to Best Fittings. Ok, I emailed them and asked about a "fix". Richard replied (long story short) with the parts we needed, so we took a run down today and he and his son took the time out of their busy schedule to apply the fix and ensure things were working as they should. Even made us a coffee
Thank you Richard and Sam Bingham. 
