At one time a wall mount pot filler would only be found in commercial kitchens. These days, however, they’ve become more common in homes. They’re set either above the kitchen sink, or you could find a wall mount pot filler over the stove. They allow the easy filling of large pots, for cooking potatoes, for instance. They can develop problems, however, and these need to be examined and repaired. Doing it yourself, rather than calling in a plumber, can save you a great deal of money.
If the faucet of the wall mount pot filler is dripping, the problem could easily be in the washer of the faucet. To take care of this you’ll need to turn off the water to the faucet (or to the house if there’s no individual stop flow on the line) and drain the faucet. Disassemble the wall mount pot filler, remove the packing nut and the valve stem before checking the washer. Remove it, replace it, and then reassemble it. In many instances this will take care of the drip.
There will also be a threaded nipple. Remove this to see if it’s clogged. If it is, blow it out before replacing it. After this you should have a good flow of water without any leaks from the faucet.
The whole idea of the wall mount pot filler is that it can easily be swung out of the way so it doesn’t hinder you in your work. If it’s not moving easily it could cause problems when you’re cooking. To take care of the problem, use some WD-40 on the hinge. You can also try to loosen the hinge a little, although you need to be careful that you don’t make it too loose. It can be a system of trial and error: keep going until you find what works well.
Pot Filler Sagging
The wall mount pot filler should stand out straight from the wall. If it’s sagging down then there’s a problem with the wall mount. It might well be that screws holding the retention ring to the wall aren’t holding. You’ll need to remove all the screws and insert anchors into the wallboard before replacing the retention ring, gasket and screws. This should eliminate the problem, but you'll need to keep checking to ensure it doesn't reoccur.
There could be leaking in the pipe, especially where the pipe for the wall mount pot filler joins the main water line. This will cause spraying of water, although you might not be aware of it in the kitchen itself. Only an inspection of the line will reveal it. To take care of the problem, turn off the water at the mains and drain the faucet. Dry off the joints of the pipe.
You’ll need to resolder the connection. This will require removing the old solder and putting in new solder. Although this is an involved procedure it’s worth every minute of your time in order to resolve the leak as it can end up damaging your house.