PSK-2500 pumps

[Awvince]

Hi.

Does anybody know how to open these pumps without taking a hammer to it?

 

[chikaboo]

Hey buddy I have these on my octx and found that I had to soak them in lukewarm water with a strong dose of vinager and then after about 30 minz they open up pretty much the same as my otp!

 

[Awvince]

I've tried that, it's still as stiff as hell.