My son loves me.

My middle child is in town to get married tomorrow. Friday I was kidding with him and told him to go buy me a 3 gallon Better Bottle. Today I came home from the barber to find a 3 gallon Better Bottle with the orange carboy cap next to my chair. The stinker went out and got me one. Thats a great boy.

So my question is will the orange carboy cap fit tight enough on the 3 gal. BB to use with an airlock. It snaps on but there is some up and down play on it. Ive seen them used with the 5 gal BB. If its not going to be a good enough fit I can get a #10 stopper for it.

Its good to have kids

It probably isn't air tight, but you don't REALLY need it to be. As long as CO2 is coming out, nothing is going in and it won't be getting oxidized, hell a lot of European brewers use open fermenters. I would avoid using it for long term aging though, as it's oxygen permeability is probably pretty high, and will oxidize the beer. I would be too uneasy using an unsealed bottle though, and #10 stopper are only a couple bucks.

If needed, put a zip-tie on it.

Ditto on the zip tie.

I tried that with my daughter and all she gave me was a poop filled diaper.

talleym0nster said:

Ditto on the zip tie.

I tried that with my daughter and all she gave me was a poop filled diaper.

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Thats why I had Sons

I use the orange cap on my BBs. It has the same amount of 'play', but it's tight enough of a seal to make my blow-off tube or airlocks bubble. As the guys said above, even if it weren't air tight, it's unlikely anything will get inside.

Your sons don't poop?! Man, wish someone had told me that back before I had girls...

Well they must not. The wife swears we are all full of poop all the time.

I have 2 six gallon Better Bottles and 2 of those orange caps...but I'm afraid to use them because they just don't feel tight. No "snapping on" really...just more of a "getting on there". There is play. Are you guys saying that's ok? Are they alright to use on my primary?

So I noticed that AustinHomeBrew says to use the red cap on the 3, 5, 6 gallon BBs. So I asked Forrest and his reply was, "The orange one is too loose. The Burgundy cap is harder to put on but it is a snug fit. You can use the orange one but the airlock won't work." Well that makes sense to me. I know the red cap is smaller and as long as they say it will fit I'm going to get one and save my orange for times when I use a glass carboy.