It's iffy. I'd watch it as it went through it's cycle and see how much agitation it puts the garment through. If it is really just a swishing back and forth, it might be ok, but I'd be worried about any spin cycle, too. That could really distort your sweater. You can't open a front loader when it's full, usually, so run something through it and see what happens.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry