[zman51]

Hello,

I am building a manifold for the bottom of a cooler I plan to use as a mashtun. I have seen 1/4" and 1/2" pipe used for this. I was wondering if one is more used than other or more of a 6 cents 1/2 dozen thing.

thx

[kramerog]

I'm not home so I can't check what size my CPVC manifold is. But I think I use 3/8" because I feel that the 1/4" may restrict flow too much while the 1/2" may be more difficult to work with because of it being stiffer. Maybe I'll remember to check when I get home.

[a10t2]

I used 1/2" for mine but I don't think there was any real logic to that other than it being convenient with a 1/2" ball valve. I will say that it's worked well for ~240 batches.

[kramerog]

Turns out I used 1/2" for a 50 qt cooler.

[zman51]

Thanks all,

Turns out I ended up using 3/4" because I already had enough of it laying around. Did a brew yesterday with it and ended up at 70% efficiency. Not sure if that is good or not.

Z

[kramerog]

Your efficiency is typical.  If you are batch sparging, your manifold does not effect efficiency.  There are lots of threads here about achieving greater efficiency.