Hey all, just been fermenting an Irish red ale for about 4 days now and I started it with a standard blowoff tube instead of an airlock since I wasn't sure how violent the fermentation would be. Checked on it today and was bubbling every 3-5 seconds. I had planned to switch an airlock in but now I'm not so sure. So my question is is it fine to simply ferment all the way through with just a blowoff tube? Seems like it would be since it's the same idea, just wanted to get a second opinion. Thanks!