How to Install an Acrylic Bathtub With Mortar
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How to Install an Acrylic Bathtub With Mortar


How to Install an Acrylic Bathtub With Mortar

Acrylic Bathtub, even though more resistant, still bend under the weight of water and require some sort of support from underneath that resists the force of a full tub of water. You may prepare a mortar bed with cement and sand to counteract the effect of weight from your bathtub. Take note that the bottom of your tub must sit snugly on the bed. Before you begin working, always make sure you have the correct materials gathered up for the job.

1 Get the measurements for your tub lengthwise and along its width with a tape measure. Measure the approximate distance from the tub to the floor. Jot these dimensions down, labeling width as "W," length as "L" and tub base-to-floor distance as "F." The labels make things much simpler.

2 Snap a chalk line of your "W" measurement from the wall on which your tub's long side will meet. You'd do best to snap this line across the approximate middle of the length of your tub. Snap another chalk line of your "L" measurement from the wall with which you intend the short side of your tub to meet. This chalk line must be perpendicular to the "W" line you snapped.

3 Make another chalk line of your "W" measurement that meets with the end of your "L" line. This line and your "L" line represent your layout. Label them with your piece of chalk with their corresponding letters.

4 Lay down beams of wood along your "L" and outer "W" chalk lines. Each beam of wood should sit flat on the ground and reach up at 2 inches above your "F" measurement. For example, if you have an "F" measurement of 3 inches, you must lay beams that have a sitting height of 5 inches.

5 Hammer two or three nails into one of your pieces of wood where they intersect to keep the beams in place. If your beams are too thick for your nails, hammer nails into a plank of wood that sits on the joint between the two beams.

6 Mix 1 part Portland cement with 1 part pure sand in a bucket. Continue stirring while pouring small amounts of water into your mixture. Keep doing this until your mixture gets a consistency like creamy toothpaste.

7 Pour your mortar mix into the area surrounded by your wooden frame and level it out with a trowel.

8 Repeat Steps 6 and 7 until you reach 2 inches below the top of your wooden beams. For wooden beams with a sitting height higher than 7 inches, consider 3 inches your limit to prevent a mortar overflow when you set the tub into your poured mixture.

9 Measure your front skirt's height, if your tub has one, and sit your tub in the mortar base and prop it up against the wall with some wooden beams. Don't let the tub sink below the height of its front skirt. Leave this project alone for 48 hours once the tub settles in.

10 Beat all the wood out of the work area with a rubber mallet. If you don't have a rubber mallet, put a small piece of wood in front of your striking area and beat the wood with an ordinary hammer. Keep your beats light to prevent the wood from cracking. Attach the front skirt to your tub when you finish all this.

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