Wp40 help can't get it to open

[prsnlty]

Hi, I need to clean my wp40 ph and have done this before but now it won't open up so I can clean the impeller.

Soaked it in vinegar for a few hours and still can open. Any suggestions would be appreciated. Thanks

Jackie
125g mixed reef peninsula

 

[SeahorseKeeper]

Moved to current forum: Equipment Discussion.

 

[prsnlty]

Ok

Jackie
125g mixed reef peninsula

 

[3dees]

twist it counter clockwise. mine was hard the first time. I thought I would break it. after the first time it's easier.