Leakage caused by the faucet seat: If you change the tap and the faucet is dripping, there may be a problem with the faucet seat. A damaged gasket may cause the faucet seat to become rough by the metal spool, or the deposition of chemical substances in the water may form a residue that prevents the gasket from being fully compressed against the seat.
How to repair the broken faucet seat? Of course, you can replace the entire faucet. Another option is to only replace the faucet seat. If you have the right tool – called the seat tension wrench, then removing the old seat is a simple matter. Insert the seat release wrench into the seat and pull it counterclockwise. Once you have removed the old seat, make sure that the new seat you bought is exactly the same as the original one. If the seat cannot be removed, insert a seat cover that slides into place on the old seat and provides a seal. Two types of seat roller compactors or sanders that can flatten the worn seat.