Tub faucet- How do I go from a single handier to double?

If it's just a drip more likely you just need to replace the cartridge and not the whole faucet. Just need to know the brand of faucet.

https://www.google.com/search?source=hp&ei=0wpzW6iRLoTetQW9wYLIBw&q=replacing+cartridge+in+single+handle+tub+faucet&oq=replace+cartridge+in+single+handle+tub&gs_l=psy-ab.1.1.33i22i29i30k1l2.1396.28319.0.31509.40.39.1.0.0.0.224.5221.0j38j1.39.0....0...1.1.64.psy-ab..0.39.5085...0j0i131k1j0i22i30k1.0.pb9Ya3cXVVI

Replacing a tub faucet is a little involved. Changing from single to double involves changing the plumbing in the wall.

https://www.youtube.com/watch?v=DlrEDWUacLg

https://www.ehow.com/info_8546649_can-shower-faucet-two-handles.html

Hi Dana,

Before you do that, look to see if you can change a washer in the faucet. Look up your brand of faucet on youtube.com to see if you find instructions to do the job.

If you want to change the faucet from a single handle to a double, here's an article that explains what is involved and how to do it.

https://www.ehow.com/info_8546649_can-shower-faucet-two-handles.html

Wishing you the best.

Linda

Trying changing the washer on the faucet --

https://www.google.com/search?ei=bQxzW-LvBarYjwS-1rS4DA&q=how+to+change+a+washer+on+a+bathtub+faucet&oq=how+to+change+a+washer+on+a+bathtub+faucet&gs_l=psy-ab.3..0.13210.14729..14944...0.0..0.69.490.8......0....1..gws-wiz.......0i71j35i39j0i7i30j0i8i7i30j0i8i13i30.m3uUq8Mjwt4

Also why go to a double faucet? A single faucet is easier to maintain. You also would have to create another hole for the additional handle.