Connecting Tub Drain to Waste Pipe In 5 Minutes!

Don’t have a clue about “connecting tub drain to waste pipe” in the proper way? Then, you have to learn the basic ideas of it. As we all know, the tub drain has 2 separate parts that can be inserted into the outflowing pipe and on the waste pipe.

And due to its 2 parts, a lot of people find it confusing to simply connect it to the waste pipe. Don’t panic! We’ll be with you to solve this matter and let you know everything to do the job safely.

In the process, you’ll need slip nuts, brackets, and other stuff to easily connect the whole setup to your bathtub. So, be with us for the next couple of minutes and you’ll get to know the steps in detail. What Are We Waiting For? Let’s Go!

The Right Way of Connecting Tub Drain to Waste Pipe

drain connection

The drain and waster pipe have to be fitted at a good distance by measuring in the bathtub. You just need to attach the bathtub drain shoe to the drain, sanitary tee, slip nuts, P trap, and outflow water closet. Be sure the P trap is attached to the waste pipe.

Drain WidthWaste Pipe WidthBathtub Range
1” to 2”4”14” to 26”

A lot of people who are new to plumbing find the drain and waste pipe the same in the tub, which is nothing but nonsense. The waste pipe can carry black water from the tubs, sinks, and toilets easily, on the flip side, the drain only holds water that needs to be cleaned on the soil or sewer.

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According to Home Guides,

A tub drain consists of two separate parts. The drain basket which connects to the drain shoe, and the drain overflow which connects to the drain shoe pipe. When these two parts connect together, they flow into the drain waste pipe which connects to the sewer or septic drain pipe. Virtually anyone with do-it-yourself experience will be able to connect a tub drain, and only basic tools are needed for this endeavor.

Homeowners find the sewer system hard in the bathtub and so get in trouble to connect tub drain to waste pipe. But if you look into the tub drain installation diagram, the whole thing will be clear as water.

Here is how you can easily connect them:

Also Read: How to Cover the Overflow Drain in the Bathtub with 5 Cheap to Pro Hacks

  • Firstly, turn off the water supply. Next, adjust the 90-degree T-shape pipe of outflow (near to the water closet).
  • Insert the rubber gasket in between the drain shoe and tub. If needed, use pliers to adjust rightly. Also, try to use silicon on the drain basket.
  • And then, add the rubber gasket to the outflow closet.
  • Attach the outflow pipe, slip nuts, and other parts.
  • Then, attach the sanitary tee and slip nuts to protect it.
  • Insert drain pipe rightly in between the sanitary tee and tub drain shoe.
  • After that, add the horizontal pie, P trap, and t-shape pipe to the waste line pipe. Be sure to use adhesive on each pipe that you are connecting.
  • Tighten out the slip nuts if they are old styled otherwise, use your hand to mount them. Adjust the stopper too that will connect the tub drain to the waste pipe.
  • Turn on the water supply line. Ensure that there is no leak coming in the tub spout. And if occurs, then be sure to check how to fix tub spout leaking from back.
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A Helpful Tutorial You May Need!

Frequently Asked Questions (FAQs)

Does a tub drain need a P trap?

Yes, For sure! Basically, the P trap is a U-shape pipe that’s used on the waste pipe to ensure toxic sewer gases are out of sight. This part is needed in most plumbing setup gears such as sink, tubs, and towers, etc.
It helps a lot to end all the hassle of bad smells and gases from coming to the bathtub. Plus, the P trap attaches to the end of the tub drain using solid glue.

What size PVC do you use for bathtub drain?

It would be perfect if the PVC tube is around 1.5 inches in size to use for bathtub drain. This will ensure good water flow on the kitchen sink, tub, and other vanity setups. Before using the PVC tube, be sure your bathtub has a 1” – 2” pipe in the drain line.

Does a bathtub need a vent?

Yes, the bathtub needs a vent to ensure no smell error and proper water flow in the drain. It as well helps a lot for the tub, sink, floor drain, and other fixtures to rightly go to the sewer.

How does a tub drain work?

The bathtub drain connection to the 2 opening line such as waste and outflow drain opening that ensure water flow is in a good state. Basically, when you fill the water in the tub, it flows through the drain to the waste line through the P trap or U-like pipe.   

Wrap Up

Still, not sure about connecting tub drain to waste pipe in your bathroom? If that’s your case, then we suggest getting help from an expert plumber to do the process. Basically, you have to identify the pipes of the tub drain and waste line that’ll help joint at ease.

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It would be better if you simply mark the pipes using a permanent marker to get the job done. And, the best way to connect these pipes in the bathtub will be easy if you gently glue them using PVC cement or other adessives.

We tried to give an easy explanation of this topic so that you can try it by yourself. Hope this guide helped you a little bit to give education. See You Soon On Our Next Article!

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