Western
Super Member
I would try slowly turning the top, feel for any "click" or unusual bump and you may find the key-way. I think that arrow definitely marks a keyed point. Usually a "twist" off arrow points in the direction of turn like you've seen before.
Also as mentioned, I would locate the manufacturer and make a call if possible.
This thing probably is like a pill bottle to assure the lid stays on, (cupped lid) as you have found out!!!
Also as mentioned, I would locate the manufacturer and make a call if possible.
This thing probably is like a pill bottle to assure the lid stays on, (cupped lid) as you have found out!!!