Hi folks,
I have a McAlpine Fast-flowing shower drain which is not fast flowing as the product claims.
The plumbing is correct and no issues or blockages.
When I lift the Part A (which breaks the water seal) the shower flows as it should so I'm suspecting it's to do with airlock.
I have seen some posts online where folk suggested drilling holes but could not access the photos showing the holes.
Please can someone advise where should I drills holes? Part A or B in the picture?
I have a McAlpine Fast-flowing shower drain which is not fast flowing as the product claims.
The plumbing is correct and no issues or blockages.
When I lift the Part A (which breaks the water seal) the shower flows as it should so I'm suspecting it's to do with airlock.
I have seen some posts online where folk suggested drilling holes but could not access the photos showing the holes.
Please can someone advise where should I drills holes? Part A or B in the picture?