Tapping sound when toilet flushes
I notice a tapping sound when the toilet flushes at the far end of the of the house (farthest from where water enters house) or the drip irrigation system turns on (also at the far end).
In the case of the toilet, the sound fades as the toilet fills and shuts off. In the case of the drip system, the sound fades after a few seconds, which I imagine to be the time it takes for water to fill the drip tubing. The sound is most noticeable in the master bathroom where the water enters the house, but flushing the toilet in that bathroom does not cause the sound.
Is this water hammer? Is it likely to cause damage to the plumbing?
Any ideas how I can fix this?