Review on Modern Single Handle Black Bathroom Faucet With Pop Up Drain Assembly And Supply Line - Lead-Free And Suitable For Vanity Bath. BWE Single Hole Sink Mixer Tap With Overflow For Improved Water Flow. by Geoffrey Graham

Some kind of blockage restricts water pressure after a few uses. I thought it was something wrong with my water supply, but after reinstalling the original faucet, I had full pressure. I figured that I might have just received a one-off bad unit, so I ordered another one. After a few uses, the water pressure dropped to a trickle. Out of frustration, I hit the top right above the swivel with a rubber mallet, and POOF! I had full water pressure. for a few uses. and then the pressure reduced to nothing. So this was the cycle- smack it on top with a hammer every few uses to restore water pressure.