I did find that out the hard (time) way, thanks.
My typical brew day sees about 5 min drain, then put kettle back on burner while getting 11-12 minutes of drain for about maybe 2-3 cups tops more, while coming to a boil. And I like that timing. This was 20 minutes and just wasn't doing anything so I lowered it back in, stirred in 1/2# of rice hulls, and kept poking and jiggling the bag. I drained about 30 minutes, and that was my full vol. I also overshot OG, likely due to flour being 100% starch w no hulls or anything (it's "pre sifted flour" after all). Lessons learned are to expect slow lauter, try whole wheat next time (the cheaper no-brand offerings were only white bleached or unbleached, being the one I chose), use rice hulls. It's a pretty murky looking brew going in the fermenter. I was so behind my expected timeline I didn't even take a pic of the hydro sample, which looked pretty much about what you might expect mixing 5# of flour into water. The taste was good bitter, pine, dark orange, underneath the sugary malt flavor of course. And it was quite a thick mouthfeel. The suspended flour also screws with refractomer, which gave 1.053 while the two hydrometers I have gave 1.056. I"ll know, and share, more in a week or two.
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Dumped in on the milled Pils malt
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Stirred in the malt
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Some "dumplings" at mash in
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All dumplings gone at 30m when I stirred and took pH sample
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Stirred in rice hulls
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Draining sloooooowly
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Milky boil
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