Frequently Asked Questions

Water Temperature

How can I make sure my shower is safe?

To make sure your shower is safe, follow these tips:

  1. Install a pressure balance tub and shower valve, such as those found in the broad selection of the Delta® Monitor® series.
  2. Set the valve's adjustable rotational limit stop to prevent the temperature handle from being turned to dangerously hot levels. For information on how to set the Adjustable Rotational Limit Stop, watch this how-to video.
  3. Carefully test the tub/shower water with your hand before bathing.

How do I set the adjustable rotational limit stop?

Watch this how to video or follow these steps:

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    cup temp set stop

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      counterclockwise temp set stop

       

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    clockwise stop temp set

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

The water in the shower is either hot or cold; I can't get any temperature in-between. What's wrong?

 

The spool and sleeve, the part of the Monitor pressure balance valve that blends the hot and cold water, may not be working properly. This is often caused by mineral deposits that build up over time. To solve, follow the steps below based on your model.


Tools you may need:


temp set stop hot cold tools

 

  1. Shut off water supply.


    temp hot cold set stop

     

  2. There are two types of valves. Choose a or b below depending on your series

    1. 1300/1400 Series: Remove handle.

    2. 1700/1800 Series: Remove temperature knob, cover and handle.

  3. Twist and pull sleeve to remove it.

  4. Unscrew brass bonnet nut.

  5. Remove cartridge.

  6. Soak cartridge in a 50/50 vinegar and water solution for 24 hours to remove any mineral deposits.

 

NOTE: Unless both hot and cold water supplies are turned on, the pressure balance valve will allow only a dribble of water to flow through the valve.

What is the adjustable rotational limit stop?

The adjustable rotational limit stop found on Delta® Monitor® valves, allows you to set a maximum hot water temperature that flows out of the tub/shower. When set correctly, this safety feature ensures that the handle in your tub/shower faucet never goes beyond the set level, resulting in a safe bathing temperature.

It may need to be readjusted if the inlet water temperatures change. For example, during the winter, the cold water temperature is colder than it is during the summer, which could result in varying outlet temperatures. Typical temperatures for a comfortable bath or shower range from 90º F to 110º F.

How do I set the adjustable limit stop? Watch this how to video or follow these steps:

Follow these steps:

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    cup temp set stop

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      counterclockwise temp set stop

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    clockwise stop temp set

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

What is wrong in a Monitor valve if the hot water comes on first when rotating the handle counter-clockwise?

When operating a Monitor valve, the cold water should always come on first and rotating the handle counter-clockwise should then increase temperature. If this is not the case, the water lines may have been connected in reverse. This can be corrected by "flipping" the pressure balancing cartridge.


temp cold first


There are two types of valves. Choose A or B below depending on your series


A. 1300/1400 Series (RP19804)

Here are the steps to follow in reversing the operation of your faucet.

  1. Before you begin, make sure that you shut off the water supply to the faucet.

  2. Remove the handle. A clear knobs will have a Phillips head screw located just under the plastic cap; a lever handle usually has a small set screw located on the side.

  3. Slide off the finished metal (chrome, polished brass, white or almond) sleeve that covers the valve.

  4. Unscrew the bonnet nut. The bonnet nut is a large brass ring and should unscrew by hand. If it is too tight, wrap a towel around the bonnet and use a pair of channel locks. Make sure that the entire valve body does not start to rotate as you do this. Remove the bonnet nut.

  5. Do not pry the valve cartridge out of the body with a screwdriver. Place the handle on the cartridge stem and rotate it counterclockwise approximately 1/4 turn after the stop has been contacted. Remove the handle. Grasp the brass stem in the center of the white plastic assembly and pull it directly out, away from the wall. The valve cartridge should slide out of the body.

  6. Reinstall the cartridge after rotating the entire unit 180 degrees. Make sure that the raised plastic stop, marked HOT, is on the right side of the valve.

  7. Reattach the bonnet nut, trim sleeve, and handle.

 

B. 1700/1800 Series (RP32104 or RP32106)

Here are the steps to follow in reversing the operation of your faucet.

  1. Before you begin, make sure that you shut off the water supply to the faucet.

  2. Make sure the water supplies are turned off.

  3. Remove the sleeve, bonnet and cartridge. Pull the cap from the cartridge and rotate it 180 degrees or one half turn. Reinstall the cap on the cartridge.

  4. Reinstall the cartridge making sure that the key is fully engaged with the slot in the brass body. Be sure the HOT SIDE marking on the cartridge is facing toward the right.

  5. Install the bonnet and sleeve making sure the O-Ring is behind the groove on the brass valve body.

  6. Install the volume control handle with the lever to the right, then turn the handle to the ON position. Install the temperature control knob and rotate it to the left. The water should be hotter the further you rotate it to the left.

When or why does the rotational limit stop need to be readjusted?

The adjustable rotational limit stop found on Delta® Monitor® valves, allows you to set a maximum hot water temperature that flows out of the tub/shower. When set correctly, this safety feature ensures that the handle in your tub/shower faucet never goes beyond the set level, resulting in a safe bathing temperature

It may need to be readjusted if the inlet water temperatures change. For example, during the winter, the cold water temperature is colder than it is during the summer, which could result in varying outlet temperatures. Typical temperatures for a comfortable bath or shower range from 90º F to 110º F.

See information on setting the adjustable limit stop.

Watch this how to video for instructions on setting the adjustable limit stop.

Why can't I get enough hot water out of my shower, tub or tub/shower valve?

If hot water supply or temperature is not a problem elsewhere in your house, then it is likely that you have a Delta® Monitor® pressure balance valve. This valve contains an adjustable Rotational Limit Stop, a small plastic device designed to reduce the risk of scalding. You may adjust the temperature yourself by carefully following the instructions below for adjusting the Rotational Limit Stop.

You may adjust the temperature yourself by carefully following the instructions below or in this [how to video] for adjusting the Rotational Limit Stop.

  1. Let the water run until both hot and cold water is fully mixed.

  2. Rotate the handle fully counterclockwise to the hottest position.

  3. Place a thermometer in a plastic tumbler, and hold the tumbler in the water stream.

    temp no water trouble shoot

  4. If the water temperature is above what is allowed by your local plumbing code (110º F or 120º F), remove the handle on 1300/1400 series or temperature knob on 1700/1800 series, and rotate the rotational limit stop:

    1. Counterclockwise if you have a Monitor® 1300 or 1400 series model (handle controls the temperature only, not the volume). For every tooth the rotational limit stop is rotated counterclockwise, the maximum water temperature will decrease approximately 6º F. NOTE: If water temperature is too cool, rotate the limit stop clockwise.


      temp no water clockwise

       

    2. Clockwise if you have a Monitor 1700 or 1800 series model (handle controls volume; temperature knob controls temperature). For every tooth the rotational limit stop is rotated clockwise, the water temperature will decrease approximately 2º F. NOTE: If water temperature is too cool, rotate the limit stop counterclockwise.

    temp no water counterclockwise

  5. For 1300/1400 series: Replace the handle. After verifying the water outlet temperature, secure the handle with the screw. Do not over tighten. For 1700/1800 series: After verifying water outlet temperature, snap temperature knob into place.

  6. MAKE SURE COLD WATER FLOWS FROM THE VALVE FIRST. MAKE SURE WATER (AT THE HOTTEST FLOW) DOES NOT EXCEED THE TEMPERATURE ALLOWED (see steps 1-4 above).

 

Important points to remember:

  • See illustrations to reduce outlet temperature.

  • Make sure cold water flows from the valve first and does not exceed 120 degrees Fahrenheit at the hottest flow.

  • According to industry standards, the maximum allowable temperature of water exiting the valve should not exceed 120 degrees Fahrenheit. (Temperature may vary in your area.)

  • After adjusting water temperature, place a thermometer in a plastic tumbler and hold the tumbler in the water stream to test the temperature. Do not test with hands or any body part.

  • If your water supply or temperature is unacceptable throughout your house, you probably need to adjust the temperature on your water heater. We recommend you follow the instructions of your water heater manufacturer. Typically, water heaters should be set in the "moderate" range, especially if you have small children.


If you have any questions or require further assistance, please contact Customer Service at 1-800-345-DELTA (3358). A representative will be glad to walk you through these steps over the telephone.


Note: Consumer safety is our number one concern. If you do not have experience with plumbing repairs, we recommend that you contact a licensed plumber for tub/shower repairs.

Customer Q & A

(34 Questions : 40 Answers)

Product Q&A

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How to remove the shower handle on 142710-1 ?

We just installed model 142710-1 / 144710-1
Venetian bronze shower head and the rotational limit stop needs to be adjusted as the water does not get hot enough. We noticed that the handle does not rotate all the way to the left where it has the word hot. There does not seem to information in the instruction pamphlet or the on line videos for our model on how to remove the handle. There is no hole to insert an Allen wrench as shown in the video. This unit is brand new.
Topics: Performance
Age: 45 to 54
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1 week, 2 days ago
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Answer: 
Hi Djsist4, Thank you for your question. To remove the handle from your model 142710-RB-I you will need to pry off the round button at the end of the handle. Once the button is removed you can loosen the screw that holds the handle onto the faucet. Here is a link to the parts breakdown for your model to help with your repair.
http://www.deltafaucet.com/customer...
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1 week, 1 day ago
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unable to remove 3/32" set screw

i want to adjust the rotational limit on my delta shower faucet per your excellent web site but of course i'm stymied by step one , just my luck the set screw refuses to budge and i'm afraid to apply too much pressure and ruin my faucet . any suggestions ?? i have temporarily turned up my water heater to avoid cold showers

thank you
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Age: 65 or over
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Ownership: 10+ years
1 week, 3 days ago
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jc
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Answer: 
Hi JC,Thank you for your question. It soulds like mineral build up may be making it difficult to remove the set screw. We would recommend soaking a towel in a 50/50 solution of white vinegar and water and wrapping it around the handle. Let it soak overnight to see if it loosens the mineral deposits that have built up over time in your handle.Once you have removed the set screw, you should be able to pull the handle straight off.
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Dave
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1 week, 1 day ago
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my model is B112900 and the handle needs to come out about 1 more inch.
Topics: Assembly
Age: 35 to 44
Gender: Male
Project Type: Replacement
Ownership: < 1 year
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1 month, 3 weeks ago
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Peter
Minnesota
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Answer: 
Hi Peter, Thank you for your question. Unfortunately we do not offer an extension that will fit the model B112900. The only way to correct the issue is to move the rough in valve to the proper depth.
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Dave
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1 month, 2 weeks ago
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Can I increase the flow of water from a Delta 1300 bathtub faucet?

I have a relatively new Delta 1300 faucet. There is very little water flowing through the tub valve. It takes forever to fill the tub. There does appear to be sufficient water coming through the shower head though. Is there any adjustment that can be made to get more water to flow into the tub?
Topics: Performance
Age: 65 or over
Gender: Male
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2 months ago
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Steve
West Orange, NJ, USA
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Answer: 
Hi Steve, We are sorry that you are experiencing a problem with your faucet. There is no way to adjust the flow of the water on a 1300 series faucet. It sounds like there may be some debris in the line leading to the spout or in the spout itself causing the issue. You may want to remove the tub spout and check the water flow from the pipe. Soak the tub spout in a 50/50 solution of vinegar and water to help clean the spout. If the flow is still slow you will want to snake the pipe supplying the tub spout. Make sure to remove the cartridge from the faucet before clearing the line.
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Dave
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2 months ago
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Topics: Performance
Age: 17 or under
Gender: Female
Project Type: New
Ownership: 6-10 years
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3 months, 2 weeks ago
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Mags
United States
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Answer: 
Hi Mags,
Thank you for your question. The faucet should have a diverter that moves the water from the tub spout to the showerhead. We have a push button diverter located on the round plate under the handle, a pull up tub spout diverter located on top of the tub spout, and a pull down diverter, pictured below where you pull down on the round portion of the spout to divert the water to the shower head.
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3 months, 1 week ago
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5 months, 1 week ago
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Doug
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Answer: 
Hi Doug, Thank you for your question. The R10000-UNWS with stops allows you to shut off the water at the valve when working on or repairing the unit without having to shut off the water to the rest of the house. The R10000-UNBX does not offer this option. Both valves will work with the T17T251-RB trim.
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Anti-scald valve with R2707 faucet

My city inspector is requesting that I install an anti-scald valve with the R2707 faucet. Do you have detailed instructions available on how to install an anti-scald valve with the R2707 faucet?
Topics: Assembly
5 months, 4 weeks ago
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David
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Answer: 
Hi David, Thank you for your question. You will have to add the R2570-MIXLF thermostatic mixing valve to temper the max hot water temperature before the water gets to the roman tub hot side valve. You will have to T off the cold water line and plumb the hot and cold lines into the mixing valve, set the temperature so it cannot scald and then continue the plumbing to the hot side. I have attached a link to the manual for the mixing valve below.
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Dave
http://www.specselect.com/Maintenan...
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6 months ago
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Sam
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Answer: 
Hi Sam, Thank you for your question. The maximum working temperature of the RP47201 cartridge is 150 degrees.
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6 months ago
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Topics: Purchase
Age: 55 to 64
Gender: Male
Project Type: Replacement
7 months ago
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John
Illinois, USA
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Answer: 
Hi John, Thank you for your question. The T13420 will work with your existing rough in. There will be a new RP46074 cartridge that comes with the trim. If your faucet is newer than February 2006 the cartridge will fit your existing rough. If the faucet is older than February 2006 you will have to continue to use your old cartridge or order a new RP19804.
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How do I increase the water pressure on delta 1400 series faucet?

Just flushed the pipe. Saw a metal plate on the cartridge, will water pressure increased if the metal plate is re-positioned?
Topics: Care/Maintenance
Ownership: 2-5 years
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7 months ago
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CIG2
Brooklyn, NY, USA
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Answer: 
Hi Cig2, Thank you for your question. There is no way to increase the water pressure by repositioning the metal plate on the back of the cartridge. The cartridge lines up with the holes in the valve that supply the water to the faucet controlling the mix of the water. Your household water pressure is not controlled by the faucet, but by the water coming into the house. The showerhead is regulated to a max of 2.5 gallons per minute. There are pressure boosting pumps available that can be added to raise the water pressure in the house.
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