Happy that my plumbing is correct as found a piccy. but unsure why my siphon didnt draw up fuel....because the bowl was empty? Capilary action thing going on?
The syphon is only there to pull fuel from the other tank thats missing now so you should be able to blank this off
I think the bowl needs to be manually filled then the syphon will work as ive run a long fuel pipe along length of tank with holes in it to prevent surge...tank is deep so thats why no pick up. unless i run out will not happen again but will try on a track day as all theory!