Captain Dirty
Platinum Member
As a bicyclist I have a lot of experience with tubes. Most are made in Asia; I'll buy Taiwanese or Singaporean but not Chinese or Indian. The weight weenies seeking the lightest equipment available and who don't mind pumping their tires up every day buy tubes that are so thin they are permeable. The manufacturers were quick to learn that more tubes from the same amount of rubber equals more $$$.
You may be able to find a larger size tube that will fit your wheelbarrow tire and have a thicker wall and be less permeable when inflated.
You may be able to find a larger size tube that will fit your wheelbarrow tire and have a thicker wall and be less permeable when inflated.