Lawn Mower Propane Conversion w/ air filter, parts, how to

[backyardsounds]

I've been wanting to do something like this since I saw my first car running on Propane back in the late 80s. However, a bottle that size usually runs about 3 dollars. A gallon of gas runs about 3 dollars as well. You estimated your yard at 1/10th of an acre and you said you can cut it 3 times. So, would it be cheaper to refill your smaller tanks by buying the 25lbs tanks at those exchange centers? I'm not sure how many bottles you can get out of one... Great video! Thank you.