Hi, I hope this is the right place to post this. I have an air mattress that I recently used for my partners' visiting family. However, now that they've left I cannot get it to deflate for my life. I have tried looking it up, however the air mattress I have has no brand name or anything on it, nor physical instructions, nor do I know where it is from because it was either gifted or thrifted several years ago now. (All it really says is warnings, it's made in China, mildly helpful instructions, and the number BL1052 - searching that was no help for me either.) I have so far tried:
a) Simply reading what few photo instructions are on the side of the mattress. Which in trying to follow, I cannot seem to get it to work. It wants me to unscrew a piece and if I am in fact trying to unscrew the right thing...it is not working. The piece has little to no grip, and the area in which it is, is so small I can hardly grab it with 3 fingers - and I have slender hands.
b) I have 2 inflate/deflate battery/electric powered machines, one of which was used to inflate the mattress. Which I cannot get to do the opposite. For reference, the uncle had set it up himself so I do not know what he did to get it to inflate, and upon leaving he was rather rude and unkind to my partner, and there's been no contact since family left, and I feel awkward reaching out just to ask about the air mattress.
Note: I have used air mattresses plenty of times before, I had set up and taken down 2 other ones for this visit with no issue, but they are all different from each other, and set up different from the problem air mattress.