Some of the really early ones would break off so I wouldn't try to mess with the old ones.
The un-slotted ones would stick from suction I would guess and the slots allow the pressure to equalize under the rave.
Defiantly replace the o-rings and they get hot so I would use viton not regular rubber ones.
The un-slotted ones would stick from suction I would guess and the slots allow the pressure to equalize under the rave.
Defiantly replace the o-rings and they get hot so I would use viton not regular rubber ones.