Replacing a Moen 4873 what is the tool called

[Anon125]

I know there is a tool to tighten the nuts on the pipe.
what do I buy?
being old during covid we don't want a plumber in the house.
so we have the faucet for the plastic utility sink and want to replace the old one.
presently there is a leak at the back, probably not the faucets problem! just the pipe nuts.
what do we need?
thanks all

 

[Anon125]

Also what do I need for this mess!

Kitchen tap- oops faucet! we are in Canada.
we suspect the old faucet leaks, Moen sent us a new cartridge.
that copper pipe then goes to a narrow plastic pipe then back to a copper pipe!
I can send pics if needed.
if I put a new cartridge in (first time for everything!) will it probably stop the leak?
thanks all

 

[Sponsor]

 

[Anon125]

there is a tool to tighten the nut behind the utility sink

 

[Terry]

Basin wrench

 

[Left_behind]

may not be a faucet issue.
try caulking the base to see if it gets better, than proceed from there...

 

[Anon125]

thanks guys