Bathroom tub faucet temperature adjustment – Home Repair Series

By Grover Koelpin 100 comments

Hi I’m Robert, thanks for tuning in to my YouTube video. I’m a very handy person, I’ve been fixing things as far back as I can remember. since I was 9 years old. I have fixed things like sheet rock walls, small appliances, computers, and the list goes on and on. I even have some formal training in carpentry and computer repair. So I hope you find this information useful. Working with this Delta faucet, it has some different adjustments in it that were hard for me to figure out. It has a cartridge in it that can be installed upside down, and have the cold and hot reversed. I’m going to show you how to adjust it to get more hot water. It appears to be factory set for safety, not to hot. It is limited to only supply a certain hot water mix, I’m going to show you how to get more hot water. First take a Allen driver and loosen the screw to remove the handle. Once the handle is removed, you will see this assembly, pull that plastic off to expose the brass piece. You want to install the plastic piece to allow more travel to the hot side of the assembly. Reinstall the plastic piece as far as you can clockwise. (I apologize for the bad camera view). It was like this, I’m going to adjust it like this. Now it will allow more hot water to flow. I’m going to test it to see if that will work. Now, reinstall the handle and check the temperature. The handle did travel further, so I’m going to feel to see how hot the water is now. The water is very hot now. I can barely leave my hand in the flow path. I’m going to play with the setting a little. I moved the plastic piece more counter clockwise. As you can see, the full travel of the handle is more to cold. Do adjust it so that it will be safe and warm enough for your entire family. Here, I decided to set it 3 notches past the neutral position. That seemed a little to cool, so I moved it 1 more notch, and I’m going to leave it there, 4 notches clockwise. Thanks again for watching the video. I hope you found the information useful, and that it helped you solve the problem you were working on. If it did, please like the video and share it with your social media friends. Please subscribe to my channel so that you get notification of future videos that I post. You can go to my website, You can also leave questions or comments below, and I will respond as soon as possible.


Lynn Couch

Nov 11, 2014, 12:43 am Reply

Thank you so much for this video.  Our faucet wasn't the same brand as yours and came apart a little differently, but it was the same principle.  Until seeing your video we were going to uninstall the faucet and return it to the store.  We thought there was something wrong with it.  We would have been shocked to find out a different brand did the same thing.  Thank God for Youtube and your video!!  We really appreciate your help!  Thank you again!!!

Tiny Teller

Nov 11, 2014, 9:30 pm Reply

Remove the end screw on cartridge and put handle back on – Bingo now check operation by putting your handle back on , yep w a recent Delta single handle tub shower faucet your done that's it……………..ta' da'…

Tiny Teller

Nov 11, 2014, 9:32 pm Reply

Remove that white plastic part and your all done on that model Delta!!

Jeremiah Hubbard

Nov 11, 2014, 2:51 am Reply

Thank you much sir!


Dec 12, 2014, 10:22 am Reply

bro that was exactly the video i needed to see. Thanks man it helped alot

G. Enrique Ramirez

Dec 12, 2014, 8:41 pm Reply

great thanks. you save my some money

J. Jankins

Jan 1, 2015, 8:41 pm Reply

Exactly what I need. Cool. Thanks.
Try it tonight!

Jessica Burge

Jan 1, 2015, 4:34 pm Reply

Thank you Thank you Thank you!

Mark Gilbert

Mar 3, 2015, 4:55 pm Reply

That's worth a subscribe..

Ding Dion

May 5, 2015, 7:04 pm Reply

Question. My single handle Moen tub faucet will only come out warm or hot. Even when turned on slightly, it will come out a bit warm. Have you ever heard of that or know how to fix it?

Heath Wood

Jun 6, 2015, 6:46 am Reply

really useful yes thanks Robert

Alex Wurden

Jun 6, 2015, 7:01 pm Reply

Thanks.  Just what I was looking for.

Nic Kennelty

Aug 8, 2015, 2:35 am Reply

Thank you


Oct 10, 2015, 1:07 am Reply

Hi Robert, My plumber installed this delta one bodysystem.The water pressure is very low & not enough hot comes out ,  the lever wasnt going far enough over to the left/hot, like in your video.  But he is now out of town for  2 months.   It looks like the one in your video but that white inner valve contraption is a lil different. This is an old house, I had the 2 knob system before & the water pressure was very good & strong. , there was a leak behind one of the knobs so when he fixed it I just decided to get the updated lever system. My neighbor  has tried to help &  took it apart but couldn't figure out how to dismantle a lil white piece /stopper that prohibited the metal screw with a lil lever from being able to go further left.   He forced,  it hoping the plastic white stopper would give & shift but it didn't budge & instead the lil lever on the metal screw just broke off.  So now it actually turns allll the way left & the hot is good but if you go too far down the cold is on again.  I guess he can fix that & order that housing portion from delta But how do we fix the water pressure??? is something like sediment or solder blocking the pipes, but it was strong before?  is the water pressure just less when you switch to a onelever system?  I hope that's not the case that pressure is way too low..any help will be greatly apprecated

Rocio Beltran

Oct 10, 2015, 4:31 pm Reply

Everyone told me that I was wrong that it couldn't get hot enough but I knew something was wrong when our plumber installed the new one… Thanks so much for uploading

Dan Marcelis

Nov 11, 2015, 12:15 pm Reply

Awesome video Robert thanks for putting it up!

Alex Memon

Dec 12, 2015, 5:58 am Reply

I have water heater plastic drain valve becuase many years it does not tur at all any sugessions

Brijesh Chauhan

Dec 12, 2015, 3:58 am Reply

Seems like my handle is stuck. I got the hex screw out but I can not pull out the handle. I am afraid of applying too much force that might break it.

Do you just pull the handle out after removing hex screw? Or is there any other hidden screw that I am not aware of?


Jan 1, 2016, 5:41 am Reply

I have this exact shower valve. But the screw that holds the handle in place is stripped and I am having issues removing it. Any suggestions?

Robt Bomba

Jan 1, 2016, 5:05 pm Reply

Thanks … clear and to the point. I need to make the same adjustment … not quite hot enough at the moment.

Helen R

Jan 1, 2016, 7:38 pm Reply

Thank you robert, clear and easy instruction


Jan 1, 2016, 11:07 pm Reply

Very helpful video, thank you so much.

Scott King

Jan 1, 2016, 8:34 pm Reply

Thank you so much.. we bought a house 3 moths ago and have been taking warm showers… I watched you video and within 5 minutes had hot water!!!!

Ron Miller

Jan 1, 2016, 5:58 pm Reply

thanks man i never understood why showers water was so cold compaired to the rest of the house.

Demetrie Strong

Jan 1, 2016, 4:25 pm Reply

my cold water is mixing with the hot water too much and making it cold after seconds of turning on the water. Any suggestions?

Laketta Knox

Feb 2, 2016, 6:27 am Reply

thank with all the men I asked had to fix it myself thank you

John Oliver

Feb 2, 2016, 2:58 pm Reply

Thanks from me too. Was just getting ready to hire a plumber. Honey Do #532: DONE!

LoS izLiKe

Mar 3, 2016, 8:01 pm Reply

do you know how to do this for a tub that has a hot and cold water handle? one tub in my home doesn't heat up enough when the hot water is full blast.

K Salah

Mar 3, 2016, 3:16 am Reply

Hey boss how do you take the handle off ? Thnk u


Mar 3, 2016, 8:04 pm Reply

THANK YOU!!!! I thought I was going to have to call a plumber to fix this. I was able to get it done thanks again.


Mar 3, 2016, 11:49 am Reply

Robert this was an excellent video. I bought a new Delta what a faucet cartridge for my bathtub and shower. I installed it last night and the water was just warm it wasn't hot. Your video was very instrumental in helping me get the water temperature hotter bravo to you my good friend thank you very much

Riley Miller

Mar 3, 2016, 2:53 pm Reply

Perfect walkthrough. fixed mine easily.

Manda Lamoreaux

Apr 4, 2016, 12:54 am Reply

Sooo very helpful. I have no idea what I'm doing but your video made me feel like a pro 🙂

Peter A Recore Jr

Apr 4, 2016, 12:02 pm Reply

Thanks Robert I think that might be my problem God Bless my Friend ….

Jason Crawford

May 5, 2016, 4:19 am Reply

thank you Mr.Robert problem solved..


Jun 6, 2016, 1:25 am Reply

thanks buddy great quick video


Jul 7, 2016, 12:26 pm Reply

thanks brother


Jul 7, 2016, 7:20 pm Reply

I have a different problem. My shower is scalding hot water only. I can't adjust the temperature at all. Suggestions?


Aug 8, 2016, 5:39 am Reply

Dude you are awesome.

Alfredo Gomez-Beloz

Oct 10, 2016, 2:56 am Reply

Thanks, man! Gonna try it now.

J. T.

Nov 11, 2016, 5:27 pm Reply

What size Allen Screwdriver would fit?

Dora Jimenez

Nov 11, 2016, 2:33 pm Reply


Brad Collins

Nov 11, 2016, 4:10 am Reply

Great tips Robert! Thanks much…well done!

Lee Zimbelman

Jan 1, 2017, 1:22 am Reply

thanks for the help

Eric Jones

Jan 1, 2017, 7:24 pm Reply

What size Allen wrench? Mine doesn't seem to fit anything..cannot get the thing off. Thanks.

Signed Up

Feb 2, 2017, 5:21 pm Reply

Kaaaa- meeeeeee- haaaaaaa- meeeee- haaaaaaa!!!!!!!!!!!!!!!!!

Travisw Williams

Mar 3, 2017, 10:49 pm Reply

you saved my life lol


Mar 3, 2017, 9:53 am Reply

This helped me! Thank you.

Lyssie S

Apr 4, 2017, 2:13 am Reply

My gd shower was hot now it's cold. Right now I'm showering in cold water.

Candy Rayne

May 5, 2017, 4:11 am Reply

thank youuuu

Gates Craighead

Jul 7, 2017, 4:26 pm Reply

Thank you so much! I moved into this house yesterday and they had the handle upside down and limited to only cold water. This video helped me fix it in three minutes!

Brianna Boone

Jul 7, 2017, 6:33 pm Reply

thanks, This solved my problem

paula munoz

Aug 8, 2017, 1:14 am Reply

Am trying it

paula munoz

Aug 8, 2017, 1:14 am Reply

It did not work

Hard Worker

Sep 9, 2017, 8:14 pm Reply

Thank you Robert I will try to fixit. Have a nice day

Jesse Galdones

Sep 9, 2017, 3:30 pm Reply

On the money. Great video and info. Thanks!!

starry chan

Sep 9, 2017, 2:14 pm Reply

Thank you very much. This is what I need to know

Superior Lawn Care

Nov 11, 2017, 10:18 pm Reply

We have a similar problem. In Sumner it's good and hot. And now in November temperature outside is around 60-70 it's not as hot. It runs out of hot water more than before. Can you help?

Steve Rudman

Nov 11, 2017, 2:00 am Reply

Robert thank you. I just moved into a new house and the water in the shower came out luke warm at best. While my fixture wasn't exactly like yours, it was close enough. Repaired it in under 2 minutes and saved a bundle. Nice!

Jonathan oloba

Dec 12, 2017, 1:39 pm Reply

The handle looks like a penis

sunny f

Dec 12, 2017, 12:51 am Reply

I got it it worked!!!! Im woman i can do this

ChubbyFlyers com

Dec 12, 2017, 8:59 am Reply

How to fix handle that won’t stay in place. Recently put new Moen setup. When water is on it falls back down to the middle. Do you know what I can do to make it stiffer so it’s not so loose left and right. The handle isn’t shaking and the whole unit feels stiff it just doesn’t stay in position when I turn the handle all the way to hot or cold. Also the pressure is a little low then it was when I had the old valve in. Please help!?

Prashanth Sivarajan

Jan 1, 2018, 1:49 pm Reply

Thanks a ton

Ila Oree

Jan 1, 2018, 5:33 pm Reply

Nice Video. What tool can I use to remove the handle? Will a Philip screw driver or mini wrench work?

keith hewett

Feb 2, 2018, 4:31 am Reply

Thank you soooo much!

William Dowdell

Mar 3, 2018, 8:21 pm Reply

Robert… Robert.. Your amazing! You saved us so much time and money.

Joe Rubalcava

Mar 3, 2018, 2:41 am Reply

Thanks alot. Now i feel with confidence working with this new faucet. I don't have to hire a plumber. You explained it very well.

Vivica Brooks

Mar 3, 2018, 12:06 am Reply

I cant get my handle off ugh!!! But this is definitely my problem!


Apr 4, 2018, 2:45 pm Reply

Thx for making the video. Solved my problem


Jul 7, 2018, 5:52 pm Reply

Helped me out sir! Thank you!!!!

Crys Bazan

Oct 10, 2018, 6:28 pm Reply

Thank you, Robert! I'm in a newly remodeled country home and this helped me do it myself! I'm a single 30-something Lady who likes to DIY as much as possible. Very helpful info

jeff jeansonne

Oct 10, 2018, 3:11 pm Reply

thanks robert good video for diyer

Nancy Scala

Nov 11, 2018, 1:50 pm Reply

Thank you! Very helpful and easy to adjust with your video.


Dec 12, 2018, 7:40 am Reply

i tried this the screw fell down teh drain and i fell in the tub im now waiting for the ambulance


Dec 12, 2018, 9:21 am Reply

the screw is way too tight cant get it off


Dec 12, 2018, 9:21 am Reply

i waited 5 hours and my shower water got warm enough to take a shower


Dec 12, 2018, 9:08 am Reply

I don't have the same shower head as yours but thank you so much for this video. I'm living in my first apartment with roommates who refuse to do anything and my shower head broke a few days ago. I screwed it together but it only produced cold water. Through this video I realized that when I put it back together I must've turned the temperature stop onto cold. I just fixed it and I feel like a real handyman 🙂

Joel Harris

Dec 12, 2018, 10:28 pm Reply

Was told it would take them 150$ to come change it lifesaver thats for sure thankyou.


Dec 12, 2018, 4:40 am Reply

Thank you!

The Jackalope

Jan 1, 2019, 11:18 pm Reply

I literally jut jumped out of the shower and searched this because my sister is also showering taking all the hot water…

Lilliana N

Jan 1, 2019, 4:45 am Reply

how do i get the screw out i put a flashlight inside the little hole and it doesnt look like a normal screw. i neeeed help 😭😭😭

Army Mobility Officer

Jan 1, 2019, 1:50 am Reply



Jan 1, 2019, 1:30 am Reply

Ohhh k you said use the Allen screwdriver and remove the handle…but you didn't show how to actually remove the handle. Thx.


Feb 2, 2019, 12:09 am Reply

Thank you sir!!

Victor Villarongo Arce

Feb 2, 2019, 10:04 pm Reply

Robert, thanks a lot:)! I was puzzled in the past with the adjustment of these valves,but after watching yout vedeo,I m good .thanks

Rob Gers

Feb 2, 2019, 6:31 pm Reply

thank you, worked great!

Muhammad Saleem

Mar 3, 2019, 5:05 pm Reply

Thanks a lot dear. You helped me a lot with this video. Thanks. Stay blessed.

TDG Services

Apr 4, 2019, 9:32 am Reply

Good job

Kevin S

Apr 4, 2019, 3:37 am Reply

Where can i buy the plastic peice ?

teresa formica

May 5, 2019, 6:22 pm Reply

Good video. But some of these have a set screw inside also so the white plastic can't be turned or removed until that is removed. Shame on the apartment complexes who pretend they don't know why the shower has no hot water. I kept saying it seems odd the handle only goes less than half way around.😱

David Urban

Jun 6, 2019, 3:23 pm Reply

What size Allen wrench?

Angel V

Jun 6, 2019, 3:14 am Reply

Just moved into new home, we don't have an Allen.. and there doesn't seem to be a nut or screw to adjust… What can I do?

Addison Hudnall

Sep 9, 2019, 6:21 am Reply

So helpful !!

Don Mar

Oct 10, 2019, 7:53 am Reply



Oct 10, 2019, 5:30 pm Reply

Thank you! It helped me solve my problem!

Michael Y.

Oct 10, 2019, 4:57 pm Reply

Well, thanks a bunch! I was gonna take the whole thing apart… not just the handle.👍🏾

Bucket Head

Oct 10, 2019, 7:40 pm Reply

you completely skipped over the most important part!!

Thomas Henry

Nov 11, 2019, 12:54 am Reply

Thank you for the vid my gf loves you 😍🥳🥰

Kong Yang

Dec 12, 2019, 2:24 am Reply

Do you just pull off the handle after taking the one screw off?

Dee Ann DeForest

Dec 12, 2019, 9:40 pm Reply

Thank you Robert! I k now you posted this a while back however it was very helpful!

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