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How to Install the Wedi Fundo Primo Shower Pan

Easier Than You Think

 

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Wedi Fundo Primo Shower Pan Install

Learning how to install the wedi Fundo Primo shower pan is easy…

…and it just might inspire you to remodel your bathroom!!

Our prior tutorial showed how to cut the wedi Fundo Primo shower pan to size.

Today you’ll see how to install the Fundo Primo shower pan and curb. Wedi shower systems are very easy to assemble.

It’s a lot easier than you think.

Let’s dive in.

How to Install the Wedi Fundo Primo Shower Pan…Start with the Drain

We installed the Wedi Fundo Primo shower kit in this bathroom because it was a tub to shower conversion.

And we were limited on time – only had a few weeks to get it done!

Keep in mind, this is part of a video series.  The rest of the videos are available both on YouTube and here on Home Repair Tutor.

First, check the shower subfloor with a level.

Check Subfloor is Level

In this example our shower floor sloped a bit. We address how to fix this problem later.

Then set the drain in the floor. We recommend letting the drain pipe run a bit wild, i.e. a few inches above the subfloor.

The drain pipe should be set by a professional or plumber if you don’t feel comfortable doing it yourself.

It needs to be cut down and 1/8″ above the subfloor.

Cut Drain for Wedi Fundo Primo

 

Drain Installation in the Wedi Fundo Primo Shower Pan

Drain installation for the Fundo Primo is critical.

So it’s super important to get right!

Apply a generous bead of Wedi Joint Sealant in the drain recess.

Drain Sealant for Fundo Primo

Compress the drain into the joint sealant and add the rubber gasket, plastic slip ring, and nut.

And hand tighten the nut on the back side of the pan.

Drain Nut for Wedi Fundo Primo

There’s no need to use a wrench with the nut.

Smooth any residual joint sealant that oozed between the drain and top of the Fundo Primo.

Steve does a great job showing this installation in the video.

Setting the Wedi Fundo Primo Shower Pan

Mapei’s Kerabond T (unmodified) was used for this project.

We added Keralastic to make it a modified thin-set.

Mapei Keralastic for Wedi

Mix modified thin-set according to the manufacturer’s directions.

It’s a lot easier to use a mixer for this. We really like Milwaukee’s cordless mud mixer.

It’s surprisingly powerful and does a great job.

Milwaukee Mud Mixer

Clean the subfloor with a damp sponge. This prevents wood subfloors from absorbing the thin-set’s moisture.

Sponge Subfloor

Burn the thin-set onto the wood subfloor using the flat side of a 1/4″ x 1/4″ square notched trowel.

Then use the notched side to trowel more thin-set onto the subfloor.

Directional troweling is recommended, i.e. trowel notches face the same direction.

Directional Troweling Subfloor

We applied a thicker layer of thin-set on the sloped side of the shower subfloor to correct it.

Back butter the Wedi Fundo Primo shower pan with the flat side of the trowel and Kerabond/Keralastic.

Also, use directional troweling with the notch side of the trowel on the back of the Fundo Primo shower pan.

The notches on the back of the shower pan should be in the same direction as the notches on the subfloor.

Directional Trowel Fundo Primo

Embed the Wedi Fundo Primo into the thin-set on the subfloor and compress the trowel notches by walking on the pan.

 

Install the Curb for the Wedi Fundo Primo Shower Pan

Check that the pan is level. Then apply a copious amount of Wedi Joint Sealant on the pan’s rabbet joint – both on the top and on the side.

Wedi Joint Sealant on Rabbet

Add Wedi Joint Sealant to the curb’s rabbet and apply thin-set to the bottom of the curb.

Wedi Joint Sealant on Curb

Embed the curb into the shower pan’s rabbet and compress the Joint Sealant.

Then check the Wedi Lean curb for level.

Finally, add the rubber gasket and pipe connection.

This is super important,

The wedi rubber gasket has a beveled edge and it should face up.

Also, the rubber gasket should be flush with the top of the pipe or a bit sub-flush.

Watch our video for all the details on how to install the Wedi Fundo Primo shower pan!

 

What’s Next

What do you think?

Does the Wedi Fundo Primo shower pan look easy to install?

It’s very user friendly and a fast installation after proper prep.

Our prior tutorial shares how to cut the Wedi Fundo Primo shower pan to size.

Plus, this is part of a video series – so you can binge watch all the videos over on YouTube.

The Wedi Fundo Primo Shower Kit can be purchased on Bathroom Repair Tutor. And we can help you choose the right size pan. Don’t hesitate to send us an email or call.

Thanks as always for reading, watching, and being part of our awesome community.

Cheers,

Jeff Patterson

 

 

 

 

P.S. If you’re doing a DIY bathroom remodel in 2018 check out Bathroom Repair Tutor, you won’t be disappointed with the videos and one-on-one support.

P.P.S. Our online store has a ton of supplies for homeowners doing a bathroom remodel. You’ll find wedi shower systems, KBRS shower pans, tiling tools, and more.

4 Comments
  1. Jaime McBrady says:

    Just wondering if you offer advice on building a new shower. We want to put a shower and toilet in our laundry room for guests.

    1. Jeff Patterson says:

      Thanks Jaime, you bet. We’d be happy to help.
      What kind of shower are you building?

  2. Glenn says:

    Does the Wedi board come in a size for a 4×6 shower

    1. Jeff Patterson says:

      Good question Glenn. The nice thing about Wedi backer boards is they can accommodate any dimension. And we’d be happy to help you figure out how many boards you need for your project. Send me an email ([email protected]) and let me know what kind of shower you’re building. Then we can put together a roadmap for your remodel. We do this a lot for homeowners or contractors using Wedi or KBRS.

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Learn the step-by-step process to start and complete your DIY master bathroom remodel in 10 Days or Less