what he said, then remove pads, get a q-tip, dab it in the hydro fluid and wipe around the exposed edges of the piston to clean it of muc n stuff then push pistons back in using normal method
I’ve had great success with ‘flossing’ around the exposed pistons using soft string dipped in hydro fluid then silicone grease.
not tried that but sounds good assuming the grease doesn't reduce the effectiveness of the seals as some grease can
@ectoplasmosis started
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what he said, then remove pads, get a q-tip, dab it in the hydro fluid and wipe around the exposed edges of the piston to clean it of muc n stuff then push pistons back in using normal method