What is this hole in the back of my toilet seat? When I flush, water spews out if the cap is off. It prevents me from installing a bidet.3yr ⋅ Sheiwn ⋅ r/askaplumber
What is this hole in the back of my toilet seat? The cap sticks out and prevents me from installing a bidet.3yr ⋅ Sheiwn ⋅ r/whatisthisthing