Thanks for the reply Douglas as your description got me thinking
DouglasW wrote: I swapped the connector end from the F-Rib foot pump
SOooo I have a confession to make
As you all know I sold PaulR my FRIB but I've never used the pump supplied with the boat, being a lazy git I'd always used my Bravo electric pump
When putting all the 'kit' together I accidentally packed my caravan air awning stirrup pump with the boats kit
Douglas's comment made me realise that I've an unused foot pump and didn't know what it's for

so dug it out and bingo it's got the bayonet fitting
My apologies PaulR and it'll be in the post first thing
I'll go sit on the naughty chair in the meantime
Paul
