Fuel tank question

[igfrey]

buechler and son 20 gallon fue

buechler and son 20 gallon fuel tank 1987
Looking for info like type of pick
and anti siphon valve yes or no?
I didn't find one and can only see
into float hole. I see baffles
and I'm looking into clean out tank
saw cork and some black specks
need suggestions on how also

 

[igfrey]

"I had a fuel flow problem las

"I had a fuel flow problem last week and
I changed bulb and pump and some hose and still intermitten runs great one day hard start next.
runs strong when working, have to play with bulb until it fires and some times ok and other time until I get a good prime. also the inline filter always has some air in it??"