Hi
Got one on order. Just to confirm when I get it, I turn the old one anti clockwise then lift lid off. Take old one out and screw new one ....turn clockwise. Is it that easy? ?
Not if welded with dirt/limescale!
2 Fingers of each hand inside the button housing at 9:15 position then apply pressure outwards as you turn anti-clockwise... like undoing a big hollow bolt!
If it resists, clean with warm water to ease.