I had replaced the cartridge of the Moen faucet in our powder room early last year. Recently my wife noticed small puddles of water around the base of the sink. Initial inspection led me to believe that there was a leak in the supply lines, because that is where the water was rolling down and dropping off. A closer review revealed that the water was actually leaking from the base of the faucet under the sink. I inspected the cartridge and it looked alright, but still at times water would run into the faucet assembly and then flow out from the bottom of the faucet towards the back of the sink.
My wife called moen with reference to their lifetime warranty and they agreed to send us a replacement cartridge. But this 15 odd year old faucet had rusted from inside and we took the call to just replace it. Got a replacement from home depot and also added a new tool to my toolkit the basin wrench. Delta had a similar looking faucet for $10 less but decided to stay with Moen as everything else in the house is from Moen.
The replacement job is pretty straight forward.
- Shut off supply lines
- unscrew the connections
- install the new faucet, reconnect the lines and open the connections
The hardest part of this DIY is the crawl space under the sink. Its a pain to get in there and do the work.
So after shutting off the water supply, unscrewed the supply lines from under the sink, using the basin wrench. Also removed the drainer stopper connection.
The bolts holding the faucet were so rusted that they came off from the base of the faucet.
Removed the old faucet, cleaned up the area. The new faucet comes with a plastic/rubber liner; I even added a bead of silicone around the perimeter of this liner/gasket.
Secured the faucet in place, while my wife held it in place from the top. Before attaching the supply lines rolled over some plumber’s tape seal over the threads. Verified all connections and then turned the water supply on.