Leak under faucet

Help Support Plumbing Forums:

tailgunner

Member
Joined
Aug 18, 2014
Messages
18
Reaction score
1
Location
,
Just noticed water leaking from under the loose faucet down to the cabinet below. Faucet was installed in a new construction home 7 years ago. It appears that there is no nut securing the faucet to the underside of the counter. Never saw a faucet installed like that.
I'm thinking that I will need to disconnect the supply line and install a nut , and possibly a large washer to secure it tightly to the underside of the counter? Is there a standard size nut, etc. Thanks for any input. Bob
 

Attachments

tailgunner

Member
Joined
Aug 18, 2014
Messages
18
Reaction score
1
Location
,
Removed the plastic fitting from the bottom of the faucet . Found it installed upside down with the "wings" of the nut up inside the hole in the granite countertop . Am I missing something?Why do it this way?
 

Jeff Handy

Pro Handyman, NOT A Pro Plumber
Joined
Jul 5, 2019
Messages
1,779
Reaction score
316
Location
Chicago suburbs
Was the water leak just from water running under the loosely mounted faucet?

There is usually a thin plastic seal that sits under the whole faucet, to keep water from running under it.
Some faucets also need a layer of plumbers putty between the sink/counter and the faucet, as a water seal.

Looks like putting the black plastic retaining nuts on upside down was just a mistake.

They were probably able to tighten them somewhat by hand, but the wings are what give you a good grip.
 

Geofd

Moderator
Staff member
Professional
Supporting Member
Joined
Jan 20, 2018
Messages
1,930
Reaction score
277
Location
Boston, Massachusetts
you are right they are/were upside down there is a tool called basin buddy,it fits on the end of a socket wrench ,it witty over supply nuts,locking nuts,plastic locking nuts....good luck
 

tailgunner

Member
Joined
Aug 18, 2014
Messages
18
Reaction score
1
Location
,
Yea, the water was running under the plastic since the faucet was loose. Found out why the nuts were installed upside down . If installed normally , the nuts are too thick, or should I say the hot/cold threaded pipes coming down from the faucet are too short. So the plumber broke the wings off the nuts , turned them upside down so the thick part is up inside the two holes in the granite. With them installed normally , there is only two or three threads left to install the water supply lines. Bob


FYI: the plumbers putty I had said to not use on granite
 

Jeff Handy

Pro Handyman, NOT A Pro Plumber
Joined
Jul 5, 2019
Messages
1,779
Reaction score
316
Location
Chicago suburbs
You can get different putty that will not stain granite. Not oil based.
Or just use some clear silicone, if there is not a good sealing gasket supplied with the faucet.

Even with the plastic retaining rings mounted upside down, they can be tightened with a good size channel lock type of pliers.
 
Top