Just wondering what breather to you guys use in your plastic fuel tank . I am pumping from the bottom of tank to engine , with a return from pump to top of tank . Just noticed today tank looked hard , so cracked the top off and it was under pressure . Tank has a roll over vent I believe the middle bit moves , not well but it moves . Is this a problem or do I need some other breather .
Cheers Dazza
Cheers Dazza

