Update #2

We have acquired the manure from a local farm, and have built the 1st generator. We have about 30L of manure, more or less. We used about 6-8L of manure, and filled it close to the top with water. We needed a smaller balloon, but we just folded down the top of the old to lessen the space where the gas could collect. We now have to wait around a week or so for the maximum amount of gas to collect. It is  averaging at about 40 degrees outside, so it might affect how much gas will collect.

Update #1

We need a smaller Mylar Balloon for the generator because the proportion is too big. We need a smaller balloon otherwise you cannot see how much methane has been collected. We also need to keep updating the journal and the blog (this). The farm needs to send us info about the manure soon.