The Definitive Buying Guide to Bathtub Drain Sizes: Everything You Should Know

The right drain size for smooth water drainage is often overlooked when upgrading or installing a bathtub. The proper drain size keeps water flowing without clogging and complies with plumbing regulations. 

If you are a DIY enthusiast, a contractor, or a homeowner planning a bathroom renovation, knowing bathtub drain sizes will spare you from unneeded installation migraines and pricey oversights. 

A drain with an oversized diameter requires costly plumbing alterations, while a drain with a small diameter leads to slow drainage. This guide has information about standard bathtub drain sizes, how to measure tub drain size, compatibility, and tips on selecting the right drain for your needs.

Why Does Bathtub Drain Size Matter?

Choosing the right bathtub drain will be important for effective water drainage, the building up of clogs, and plumbing system compatibility. 

An optimally sized drain ensures water flows swiftly, minimizing standing water, bad smells, and unpleasant long-term water damage. Also, knowing the right bathtub drain size can save you from unnecessary worries.

For example, Imagine relaxing in a bath, only to remember that the water takes a whole 10 to 15 minutes to drain fully. You may have a problem if your bathtub's drain is too small and prevents efficient water flow.

A properly sized drain will take care of any drainage issues to enable you to have a relaxing bathing experience.

Standard Sizes of Drains For Bathtubs

Bathtub drains come in two primary sizes:

• 1.5 inches:This is the standard drain size of the majority of domestic bathtubs, including alcove, freestanding, and clawfoot tubs. These types of drains allow the water to drain well in the household.
• 2 inches:This drain size is common in large, higher-capacity bathtubs such as whirlpool tubs, soaking tubs, and jetted tubs. The increase in size enables efficient drainage thus caring for water stagnation which is a must for larger tubs.

To avoid problems with installation when replacing a drain, ensure that you measure the dimensions of the existing pipe before buying the replacement pipe.

How to Measure the Size of Your Bathtub Drain?

Here’s how to ascertain the drain size that’s the best fit for your bathtub:

1. Measure the Drain Opening:Grab a measuring tape and find the measurement of the drain hole in your bathtub. It does not include the surrounding area.
2. Check the Drain Pipe Diameter:Look under the tub and see the existing bathtub drain pipe size. If it is equivalent to an inch and a half then a standard drain will work. But if it is equal to 2 inches, then you will need a bigger drain.
3. Consult To The Bathtub Manual:Lastly, some companies such as Empava include details in their marketed products with regards to drain size. If unsure, you can browse their sites for additional information.

Compatibility of Drain Sizes with Different Bathtubs

Not all bathtubs use the same drain size; that is a fact. Some tub types and their sizes are listed below:

Choosing the wrong bathtub drain size can result in unnecessary plumbing adjustments, leakages, and slow drainage.

Empava Bathtubs and Their Outstanding Drainage Features

Empava bathtubs are uniquely designed to provide optimal performance and quick water drainage. The company offers freestanding bathtubs, walk-in tubs, and luxurious whirlpool models that adhere to standard bathtub drain sizes and can conveniently optimize water flow.

Reasons for Choosing Empava Bathtubs

• Efficiency:Every Empava bathtub is built with high-precision drain systems that are constructed to have very little standing water and allow for rapid drainage.
• Compatibility:Empava bathtubs are made to fit standard 1 1/2-inch and 2-inch drains which makes installation simple and easy.
• Quality and Material:Empava bathtubs and their drain accessories have strong construction which enables them to withstand wear and tear.

Common Empava Bathtub Models and Drain Measurements:

• Empava Freestanding Bathtub:Works with 1 1/2 inch drains which is ideal for standard homes.
• Empava Whirlpool Bathtub:Comes with a 2-inch drain system which has the capacity of handling a larger volume of water.
• Empava Walk-In Tubs:Employs a 1 1/2 inch drain which is suited for swift drainage and guarantees safety and convenience after use.

Are you looking for a bathtub with quick drainage? Check out the full selection of Empava Bathtubs Here

Selecting the Right Drain Pipe Size

Here are some things to think about before shopping for a bathtub drain:

• Plumbing Code Conformance:Always verify the local plumbing codes before doing anything.
• Your Bathtub’s Water Capacity:Slower draining is an issue with bigger soaking or whirlpool tubs. They need 2-inch drains.
• Your Home's Plumbing System:You may have to modify the rest of your plumbing system if you have 1 1/2-inch pipes and want to change to 2-inch drains.
• Choice of Material:Plastic drains are cheap while brass drains offer more durability.
• Master Overflow:Make sure that the drain assembly will work with your bathtub's overflow system.

How to Upgrade or Replace a Bathtub Drain?

To replace your bathtub drain, do the following:

• Turn Off The Water Supply:If needed, cut off the water supply to prevent leaks.
• Remove the Old Drain:Unscrew the old drain assembly using a drain wrench or pliers.
• Clean The Drain Opening:Clear all old putty or debris to help with installation.
• Install The New Drain:Screw the new drain rib in place after applying the plumber's putty around it to secure it.
• Check For Leaks:Watch the drain area while the bathtub fills with water and check if there are any leaks.

Empava Bathtub Accessories is the right place to shop for quality drain accessories.

Final Thoughts - Choosing the Right Bathtub Drain for Your Needs

Knowing the sizes of bathtub drains enables you to buy the right one that can match your tub's size, allowing for proper drainage of water as well as smooth installation. Whether you are buying a brand-new bathtub or replacing an old drain, getting the right dimensions is crucial for proper functioning.

If you are looking for a bathtub with an efficient bathing system Shop Empava Bathtubs & Accessories now for convenience and a quality experience.