Turn anything into a primary fermenter!

[abracadabra]

I'm definitely interested in the results, but aren't they only Medium DPE? IIRC what we want is the High DPE, to avoid oxygenation. That's what the brew buckets are made of.

Then again, if it's just gonna primary for a couple weeks before transferring to secondary, then I imagine that oxygen permeability shouldn't matter too much...

It could very well be MDPE I don't know the seller wasn't to much help they said they though it was HDPE. But it looks more like MDPE to me. It could be LDPE for all I know it's not marked.

I would not leave it in there more than a week .

Bellybuster,
I'm not so much concerned with airtight fit of the lid as I am in knowing when the fermentation has subsided so I can transfer to the secondaries. And with a plastic fermenter I want to transfer ASAP. If the lid leaks the airlock might not be a good indication of fermentation activity. With a good seal I could time the bubbles or lack there of coming out of the airlock. And that just seems easier than taking a gravity reading.