Frequently Asked Questions

Toilets - General

Are round and elongated Delta toilet bowls available?

Yes, both options are available: the Delta Prelude™ round front toilet and the Delta Prelude elongated toilet. For toilet bowl and other dimensions, see the Technical Specifications on the “Product Support, Repair Parts & Tech Specs” tab.

Do Delta toilets come with a tank lever?

Yes, all Delta toilets come with a tank lever.

Do Delta toilets come with a toilet seat?

Yes, Delta toilets come complete with a seat. We understand that toilet seat comfort is a personal issue. It is possible to purchase another toilet seat that suits your preference. Be sure to purchase a seat that fits the same bowl shape as your Delta toilet.

What are the dimensions of chair height vs. standard height toilets?

ADA-compliant chair height is a minimum of 17 inches and a maximum of 19 inches from the finish floor to the top of the toilet seat. Standard height toilets are typically 14 to 15 inches in height.

What does "chair height" mean?

Chair height or seat height refers to the distance from the floor to the top of the toilet seat. An ADA-compliant toilet seat must be between 17 inches (minimum) and 19 inches (maximum) above the finished floor. Delta toilets are ADA-compliant to make sitting down and standing back up easier.

What does gallons per flush (gpf) mean?

Gallons per flush (gpf) is a measure of the total volume of water required to flush a toilet or urinal, measured in gallons.

What does high-efficiency toilet (HET) mean?

High-efficiency toilet (HET) is a term that describes a toilet that flushes 20 percent less than the U.S. maximum of 1.6 gallons per flush. This equates to an average 1.28 gallons per flush. Delta toilets qualify as high-efficiency toilets.

What does the WaterSense® label mean?

The WaterSense program is a voluntary partnership program sponsored by the Environmental Protection Agency (EPA) that is designed to encourage water efficiency in the U.S. through the use of a special label on consumer products. In order to carry the WaterSense label, a toilet must use 1.28 gallons or less per flush and remove at least 350 grams of waste as measured by third-party MaP testing. The purpose of WaterSense labeling is to make it easy for consumers to identify products that save water yet do not require a lifestyle change. Delta toilets are WaterSense labeled.

WaterSense is a registered trademark of the U.S. Environmental Protection Agency.

What is CALGreen® and how does it relate to toilets?

CALGreen refers to the California Green Building Code, a statewide code relating to certain categories of residential and non-residential buildings. The code mandated a 20% reduction in water usage for toilets as compared to the industry baseline of 1.6 gallon per flush, resulting in a water usage requirement of not more than 1.28 gallons per flush. Delta toilets are CALGreen compliant.

CALGreen is a registered trademark of the State of California Building Standards Commission.

What is the flush performance for Delta toilets?

Delta toilets are WaterSense® labeled with a high-efficiency flush rate of 1.28 gallons per flush (gpf). Delta toilets rate 10 out of 10 when it comes to flushing power, evacuating more than two pounds of waste in one flush [based on maximum performance (MaP) industry testing standard].

What is the size of the handle hole in the tank?

The hole is 0.67” x 0.67” (17mm x 17mm).

Where can I purchase a Delta toilet?
Will other manufacturers’ tank lever handles, fill valves, flappers or seats fit Delta toilets?

Delta toilets are sold with tank lever handles, fill valves, flappers and seats. Some components are standard while others are unique to Delta models. Because Delta toilets are engineered to meet exacting standards, we recommend using only genuine Delta replacement parts.

Customer Q & A

(13 Questions : 13 Answers)

Product Q&A

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"stuff sticks to the bowl"

So far we hate the toilet, when someone is doing #2 should it touch the side, you have to get a brush to remove the residue. there is no water power to take all materials down the toilet. any advice?
Topics: Performance
Age: 45 to 54
Gender: Male
Project Type: Replacement
Ownership: < 1 year
Skill Level: Intermediate
4 months, 3 weeks ago
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bowers64
hilliard ohio
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Answer: 
Hi bowers64, Thank you for your question. All Delta toilets are rated at 1,000g MaP and flush at a Watersense® certified 1.28gpf. This means that Delta toilets have the highest rated flush performance while also being water efficient. With that being said, compared to older toilets on the market that flush 1.6gpf or more, perhaps the one that you are replacing, there may be a “perception” of lower performance. I can ensure you though all Delta toilets are 100% tested and meet or exceed all quality and performance standards found in the industry today.
Thanks,
Dave
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4 months, 3 weeks ago
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Is there a special plunger for the Delta Elongated Toilet?

I can't get either of my plungers to work on the elongated toilet because it can't make a tight seal and water shoots up out the back. Is there a special oval or cornered plunger that will work with the 1.28gpf elongated toilets?
Topics: Performance
Age: 45 to 54
Gender: Male
Ownership: 2-5 years
7 months ago
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Plunging Forever
NJ
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Answer: 
Hi Plunging Forever, We are sorry that you are experiencing a problem plunging your toilet. There is not a special plunger required for the Delta elongated toilet. There is nothing unique about our bowl/sump design that should prohibit normal plunger usage. Just make sure you are using a plunger recommended for toilets.
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Dave
Skill Level: Advanced
6 months ago
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Re: Prelude Elongated Toilet

Have had toilet for about 3 months and love it. However, it is now "filling" periodically all by itself. What adjustment needs to be made to stop this?
Topics: Performance, Care/Maintenance
Age: 65 or over
Gender: Female
Project Type: Replacement
Ownership: < 1 year
Skill Level: Beginner
9 months ago
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Joyful
Hiram, GA, USA
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Answer: 
Hi Joyful,

Thank you for your question. I apologize for the issue that you are experiencing. To ensure the proper part is identified for repair, please contact our toll-free Home Owner/Warranty department at 855-345-1345..

Thanks.

Jody
Skill Level: Advanced
9 months ago
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Indianapolis, IN, USA
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Topics: Features
11 months ago
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VG
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Answer: 
Hi VG, Thank you for your question. The water level in the bowl of model C41901 is not adjustable.
Thanks,
Dave,
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11 months ago
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When I flush our new toilet, we have to hold down the lever to get a full flush, otherwise as soon as we let go of the lever the flapper closes. there is a hole in the ball of the flapper which lets the air out rapidly when the lever is let go. most other brands and some replacement flappers do not have this hole in the same location.
Topics: Performance
Age: 45 to 54
Gender: Male
Project Type: New
Ownership: < 1 year
Skill Level: Advanced
1 year, 2 months ago
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David
Euless, TX, USA
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Answer: 
Thank you for your question. All Delta toilets are high efficiency and water sense certified. This means that they are designed to operate on 1.28 gallons of water (A 20% saving over the older 1.6 gallon models)

When the flapper is actuated it is designed to dose 1.28 gallons of water into the toilet bowl and rim. There is more than 1.28 gallons in the tank and the flapper is designed with a calibrated hole so that after initial activation (it is expected that a handle will be held down for 1 second, which is the standard test carried out to national plumbing standards) it sinks in the time necessary to deliver this amount of water. Water remains above the flapper after the cycle. This is correct use of the toilet.

You might also check the chain length. If it is too long or too short, it could affect your flush.
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1 year, 2 months ago
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1 year, 2 months ago
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S
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Answer: 
Thank you for your question. It is possible to add a mixing valve to your toilet supply line to prevent condensation. We do have one available that is shipping out at the end of this month. The Delta Faucet model # is R2910-MIXLF and it can be ordered and purchased from your local retailer or wholesaler.
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1 year, 2 months ago
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Just bought 3 Delta HET 1.28 gpf toilets last Fall

Just had my first clog last night. My trusty plunger, round shape, was totally useless - unable to build up pressure due to the square hole shape did not match round shape of the plunger, allowing water / air to escape in the 2 corners. Clog cleared on its own in 2 hours.

Just bought the house last Fall, renovated all 3 bathrooms, kitchen.
Topics: Care/Maintenance
Age: 55 to 64
Gender: Male
Project Type: Replacement
Ownership: < 1 year
Skill Level: Intermediate
1 year, 4 months ago
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Bill
Rhode Island
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Answer: 
Hi Bill,

I am so sorry for the inconvenience you are experiencing. We recommend using a plunger with a flange on the end to better fit the contour of the toilet.
1 year, 4 months ago
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what can I use to clean the toilet bowl of my Delta Toilet?

Age: 55 to 64
Gender: Male
Project Type: Replacement
Ownership: < 1 year
Skill Level: Intermediate
1 year, 5 months ago
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Ken
Northern California
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Answer: 
Thank you for your question. We do not recommend any specific brand of toilet cleaner. We do recommend that you use a cleaner specifically designed to clean toilets.
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1 year, 5 months ago
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Building a home & am researching Kitchen & bath products. Only buying American made. Period.
Can I detect by Model or Model number? If not, I will go elsewhere to buy my products.
Topics: manufacturing
1 year, 5 months ago
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Nancy
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Answer: 
We manufacture Delta faucets and toilets in our plant facilities in Greensburg, Indiana; Jackson, Tennessee; London, Ontario, CA (and Panyu, China). As a global manufacturer, we also source and assemble a number of parts around the world. No matter where in the world our products are sourced, manufactured or assembled, they are built to Delta Faucet Company’s exacting specifications and are quality tested to ensure long-lasting performance. The location information on the back of the box will tell you where your specific toilet model was made.
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1 year, 5 months ago
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Where are delta toilets manufactured?

Topics: manufacture
1 year, 9 months ago
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tamararez
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Answer: 
We manufacture Delta faucets and toilets in our plant facilities in Greensburg, Indiana; Jackson, Tennessee; London, Ontario, CA (and Panyu, China). As a global manufacturer, we also source and assemble a number of parts around the world. No matter where in the world our products are sourced, manufactured or assembled, they are built to Delta Faucet Company’s exacting specifications and are quality tested to ensure long-lasting performance. The location information on the back of the box will tell you where your specific toilet model was made.
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1 year, 9 months ago
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Indianapolis, IN, USA
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