The airlock s not and inaction of fermentation. You are warming it and as you do the air and liquid expands which creates a positive pressure inside your vessel. Just leave it alone and trust that the yeast know how to do their job.
Secondary is not necessary. Do not use the airlock as an indicator of fermentation. Use a hydrometer or refractometer and test the specific gravity. Once it has stabilized for 3 or more days it will be safe to bottle.
Do no use airlock activity is not an indicator of fermentation. Trust that the yeast know what to do to make beer as long as you provided them with food and the right temperature.
Why do you have to store it 18-20 years? My daughters enjoy my beer with me and have been since they were old enough to ask for a taste. They don't get very much but they enjoy it with their daddy just the same.
Do not use the airlock as an indicator of fermentation. As the previous poster said let it go a bit longer and use your hydrometer to tell you when it's done. I wouldn't change your temperature as I think its better to keep temp steady but maybe someone with more knowledge could give you more...
He hasn't even brewed one batch yet to see what his final product will be. You're making this more complicated than you have to. Brew, taste and if you are happy awesome. If you are not post your recipe and some of the more knowledgeable people may be able to help you correct what you don't...
+1
Do not use airlock activity as an indication of active fermentation. How long ago did you pitch the yeast? What was your starting gravity, and what is it now?
I'm new as well, but I would say that if your water is drinkable without noticeable tastes or aroma that it will brew great beer. If you have the time and it would make you feel better use your filtered water, but I wouldn't go through the extra expense or trouble until you have tried brewing...