hello guys!!thank you for all the replyies and your time!!

Gordon becouse of one big (3liters)long flat tank i think the long tygon inside will be out of fuel in every dive of mine suking only air in the tank and not fuel! so uat will quicly get air...

...maibe ill use another small tank betwin uat and main...hoping to feed engine and uat until dive finish..

my promblem is the tygon line if not the shape of the tank...becouse is not very elastic!

do you think a neopren line would chace fuel better in the tank or ill get any new promblems!??

...can a jet cat pump colaps the wals of a neopren line on full throtle...you think i should avoid it?

if the risk with a long neopren line would be the line to close from tite angles inside how about using this arount the line to avoid that hapent:

http://www.dreamworksrc.com/catalog/...oducts_id=1452


thanx guys!....forgive my bad english[8D]