Originally posted by Damn Squirrels
Is there any reason you can't use a rubber stopper with an airlock?
I didn't think I had a stopper big enough but I found one. Good call.
Originally posted by Brewpastor
How thick are the walls on your barrel? I have two similar barrels but have wondered about their sides. Also, what did you do to clean them (details please).
I forgot to measure the thickness while I had the bung out but I'd guess about 1/4 inch or so. It's a 15.5 gallon barrel so they aren't very thick. When I got the barrell it hadn't been used in a while but the previous owner burned a sulpher stick inside to keep the nasties at bay. When I got it, I used the method outlined below to prepare the barrel. My LHBS had everything I needed.
1. To five (5) gallons of hot tap water add one (1) pound of soda ash and two (2) teaspoons of household lye. Make enough to fill the barrel. When you are sure that the ingredients are completely dissolved, pour the solution into the barrel.
2. Let the barrel soak for two (2) to three (3) days.
3. Drain the solution and flush the barrel with clean water three (3) times.
If you are preparing an all-new, unused oak barrel, repeat steps #1 through steps #3 at least two (2) times.
4. Make a solution of one (1) ounce of sodium or potassium metabisulphite and half (1/2) ounce of citric acid to a gallon of water. One (1) gallon is enough for a five (5) gallon barrel. Make two (2) to three (3) gallons of solution for larger barrels. Pour in the solution, close the bung, and roll the barrel about so that all interior parts of the barrel are contacted by the solution.
5. Rinse the barrel once more with clean water, so as not to have too much sulphite or sulfur dioxide in the wine. The barrel is now ready to fill with your wine.
Recommended Method For Cleaning Oak Barrels
Initial treatment for new barrels & cleaning and sanitizing of used barrels
Rinse barrels several times with cool water.
Fill half way with hot (140-150º F) water.
Add Soda Ash solution, mix by rolling barrel.
Fill completely with hot water, replace plug.
Allow to stand for 24 hours, then rinse several times with cold water.
IMMEDIATELY fill with wine or proceed to step 2.
Keeping Barrels In Good Condition. Immediately after emptying barrel of wine from step 1 above.
Rinse with cold water several times, with barrel about 1/4 full of water and plenty of rolling, both sideways and end over end.
Fill half way with cold water.
Add Sodium metabisulphite solution.
Add Citric Acid solution.
Mix by rolling, fill completely with cold water, replace plug and place in storage.
Check water level every month, add cold water to keep barrel full.
Before using rinse several times with cold water.
Always Keep Barrel Full.