I don't use the pink stuff other than in ptraps and opt to use a compressor to blow all water out and winterize. It typically works well, and we get to below zero F up here in northern NM a couple of times a winter.
This method is fully incompatible with a residential fridge. The back of the fridge blew out the first time we took the fridge out after winterizing - the compressed water didn't blow clear through the icemaker and there's no good drain under it.
I've considered adding a high point valve to allow air in so water will drain, but we simply don't use the icemaker enough to justify the effort.
So... use the pink stuff or disconnect it!
Lots of wisdom from EA37TS and Gritz.