My question is somewhat similar to this question - How can I fix a window with cracked glass?. The difference is that my window is single hung. The windows are double pane and the inside pane has a big crack. I've attached two pictures. One shows part of the crack. The other shows what the space between the two panes looks like, it's pretty rough. Is there a way for me to fix the window? Or is it at the point where I'd be better off just replacing the whole thing? Given what I have read elsewhere I'm not sure it's possible to remove the top sash, which means I might have to replace the entire window?
Thanks for any info, I really appreciate it.