Originally Posted by
Howie-RCU
OK I see where you are coming from but unless you are going to the trouble of maintaining the tube and making sure it is not blocked, then it's not really insurance. If you are going to that trouble then get rid of the electric pump because the carb pump works a treat if the line is not blocked. Just my $0.02
Interestingly, after many flights, my fuel pump pulse tube is absolutely clear of any grease.