You could leave the old mortar and put a liner in but you will need something solid for the tile to stick to that is why there is a layer of mortar on top of the liner. Hydraulic cement is really good at sealing things up but I would probably want to add a new liner since the pan was leaking.

Do you need mortar under a shower pan?

Quote from the video:
Quote from Youtube video: And the reason you want to do that is because if you get too much flux in the bottom particularly on cheap tubs. Or really large surface area tubs you can get damaged and leakage.

Do I have to cement under shower tray?





Designed to drain water from the shower, it protects your floor from water intrusion, rot and mold. Installing one requires some skill and there are certain rules and procedures to follow when doing so. In some cases a mortar bed is a necessity; other times it isn’t.

What can I use for a mortar bed?

The best mortar mix for shower pans contains sand and Portland cement. This will create a water-resistant barrier that will support the weight of the shower floor and its users.



What mortar to use for shower pan.

Types of Mortar Ingredients
Sakrete Sand Mix Portland cement, concrete sand
DIY Shower Pan Mortar Bed Portland cement, fine sand

How do you make a mortar out of a shower pan?

Quote from the video:
Quote from Youtube video: Again approximately one inch off the base of the floor in this particular case okay so what I've done now is that mixed up a bag of mortar sand top mixing quikrete mortar.

What goes under a shower pan?

A shower base is a structural base underneath the shower pan. This typically references the layer of mortar and liner sitting on top of your subfloor, beneath the shower pan. Having a liner or sealant put down before the mortar will ensure your subfloor doesn’t get wet.

What can I use for a shower base?





4 of the Best Shower Base Flooring Options

  • Tile Shower Bases.
  • Molded Stone Shower Bases.
  • Acrylic Shower Pans.
  • Fiberglass Shower Pans.


What can I use for a dry pack shower pan?

Building your own shower floor from scratch requires shower deck mud, also referred to as dry pack mortar. Deck mud is made from portland cement, sand, and water. The mixture should be approximately 1 part cement to 5 parts sand but anywhere for 4 to 6 parts sand to 1 part cement is acceptable.

What kind of mortar do you use under a shower pan?

The ideal mortar for a shower pan is a mix of standard cement mix with sand and Portland cement. This type of mortar creates a great water-resistant barrier that can support the weight of the shower unit.

How thick should a shower mortar bed be?



½”

Build the Primary Mortar Bed



With the waterproofing membrane in place, it’s time to put the final layer of Sand Mix down. The depth of this layer will be determined by the height of the adjustable drain but must be a minimum of ½”.

Is thin set a mortar?

Thinset is an adhesive cement used to secure floor and wall tiles to concrete surfaces. The word “thinset” is sometimes used interchangeably with “mortar,” because it’s a type of modified mortar made specifically for tile.

Does shower pan liner go behind backer board?



The wallboard must be installed 1/8 inch above the shower pan. If the shower pan is not in place, the wallboard height must be guessed, which can lead to inaccuracies and an expansion gap that is too large or too small.

How do you make a shower base?

Quote from the video:
Quote from Youtube video: I just use HVAC tape and that normally holds pretty. Good. Go ahead and pre-cut some boards that reach from the drain to the border. And that way you can use them and see where you need to add mortar.

Can you build your own shower base?

While you can buy a prefabricated shower pan, making your own lets you customize the size and shape to fit your needs. Once you frame out your shower pan, spread and smooth out mortar so it leads to your drain.

How do you tile a shower floor with a pan?

Quote from the video:
Quote from Youtube video: Or porcelain tiles on the shower pan. So we cut that third that third sheet the size. And then we worked our way from the plumbing wall toward.

How do you secure a shower pan to the floor?



Quote from the video:
Quote from Youtube video: Apply plumber's putty to the underside of the drain flange and insert it through the drain hole in the pan. Install the gaskets tighten the nut on the bottom of the drain flange.

Can you use spray foam under a shower pan?

Spray foam under a shower pan is an option for reducing flex. It’s not the only solution and it may not be the best choice depending on your situation but if you do decide to use it, make sure that you opt for a non-expanding foam.

How do you install a shower pan on a wood subfloor?

Quote from the video:
Quote from Youtube video: What we're going to start with we have our plywood floor already done and prepped and our drains located.

Do you need to waterproof under a shower base?

DON’T ignore the importance of waterproofing when installing an acrylic shower base. The walls and the area around the top of the acrylic base along the wall are very important for proper waterproofing and it is essential that it be done correctly.

Do shower pans need liners?



And yes, it is safe to have it. In fact, the absence of a liner can be riskier than having a one under the tiles. Installing a shower pan liner is a must and it can be the difference between an enriching experience every day to a leaky bathroom.

How do you waterproof a shower floor before tiling?

Quote from the video:
Quote from Youtube video: First install a cement based pre slope. Always tie the liquid membrane into the drain by applying it to the bottom of the drain flange.