Let me sweat first. . . .
This situation is caused by the fact that there is air in the water line. . If you open it a little more, the water flow will vibrate the air, making it purr. If you open it wider, the water flow will be faster and the air will disappear.
Be careful in the future.
1. Close the tap slowly.
2. Open the main valve smaller, so that the water inlet speed is also smaller.
It is best to replace the seal inside, it's very simple. .
I hope your faucet calms down soon