Plumbing 101: A Necessity for Bathtub Installation
Plumbing 101: A Necessity for Bathtub Installation
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Everyone will have their unique thinking involving How to Install a Bathtub.

Installing a tub isn't specifically brain surgery, but it does require strong plumbing, woodworking, and also sometimes, tiling skills. Replacing an old bathtub with a new one is also a moderately tough task. If the old bathtub is conveniently available, the job can relocate immediately; if you need to open a wall to remove the old tub and also place the new bathtub, the job is much harder. In either instance, the job is within a house handyman's skills, although you will certainly need an assistant to vacate the old bathtub and embeded in the brand-new one. Ensure you have actually qualified on your own for the work as well as are comfortable trying it. Rather than employing a professional to take control of a halfway-completed project, it is better to think about using one before you start. Chances are you might require a professional plumber to make tube links.
This write-up will assist you set up a brand-new bath tub in your restroom if you have actually already purchased a brand-new tub as well as do not need to change the setup of your previous water supply pipelines.
Your devices and also product list ought to make up the following:
Planning for the Setup
First of all, the supporting frame provided with the bathroom needs to be fitted (if needed) according to the producer's instructions. Next off, fit the taps or mixer to the bath tub. When fitting the faucet block, it is very important to see to it that if the tap features a plastic washer, it is fitted in between the bath as well as the taps. On a plastic bath, it is also practical to fit a sustaining plate under the taps system to stop strain on the tub.
Fit the adaptable faucet adapters to the bottom of both taps using 2 nuts and also olives (in some cases provided with the bathtub). Fit the plug-hole outlet by smearing mastic filler round the sink outlet opening, and then pass the outlet through the hole in the bathroom. Utilize the nut provided by the supplier to fit the plug-hole. Examine the plug-hole outlet for an inlet on the side for the overflow pipe.
Next, fit the end of the flexible overflow pipeline to the overflow electrical outlet. After that, screw the pipeline to the overflow face which need to be fitted inside the bath. Make sure you make use of every one of the supplied washers.
Attach the catch to the bottom of the waste outlet on the bath tub by winding the thread of the waste electrical outlet with silicone mastic or PTFE tape, as well as screw on the trap to the outlet. Attach the bottom of the overflow tube in a comparable manner.The bath should currently be ready to be suited its last placement.
Removing Old Taps
If you require to replace old faucets with new ones as a part of your setup, after that the first thing you need to do is disconnect the water supply. After doing so, switch on the faucets to drain pipes any water continuing to be in the system. The procedure of removing the existing faucets can be quite problematic due to the limited accessibility that is often the case.
Utilize a basin wrench (crowsfoot spanner) or a faucet device to undo the nut that attaches the supply pipes to the faucets. Have a towel all set for the remaining water that will originate from the pipelines. When the supply pipelines have actually been gotten rid of, make use of the very same tool to loosen the nut that holds the faucets onto the bath/basin. You will certainly need to quit the solitary taps from transforming during this procedure. Once the faucets have been gotten rid of, the holes in the bath/basin will have to be cleaned up of any kind of old sealing substance.
Prior to proceeding to fit the brand-new faucets, compare the pipeline connections on the old taps to the brand-new taps. If the old faucets are longer than the brand-new taps, then a shank adapter is required for the new faucets to fit.
Mounting the Bathtub
Utilizing both wood boards under its feet, position the bath tub in the called for position. The wooden boards are helpful in evenly spreading the weight of the bathtub over the area of the boards rather than concentrating all the weight onto four small factors.
The following objective is to make certain that the bath tub is leveled all round. This can be accomplished by checking the spirit level as well as changing the feet on the tub till the level checks out degree.
To mount taps, fit the bottom of the outermost adaptable tap port to the suitable supply pipeline by making a compression sign up with; then do the same for the various other tap.
Switch on the water supply and inspect all joints and brand-new pipework for leaks and tighten them if essential. Fill the bath tub and additionally check the overflow electrical outlet and also the typical outlet for leaks.
Lastly, fix the bath paneling as defined in the manufacturer's instruction manual. Tiling and also securing around the tub needs to wait until the bathtub has been utilized at the very least when as this will certainly resolve it into its final position.
Fitting New Taps
If the tails of the new taps are plastic, then you will need a plastic adapter to avoid damage to the thread. One end of the adapter fits on the plastic tail of the faucet and the other end supplies a connection to the existing supply pipes.
If you need to fit a monobloc, after that you will certainly require decreasing couplers, which connects the 10mm pipeline of the monobloc to the basic 15mm supply pipeline.
Next off, position the faucet in the installing opening in the bath/basin making sure that the washing machines are in area between the faucet and the sink. Safeguard the tap in position with the producer offered backnut. As soon as the tap is firmly in place, the supply pipes can be attached to the tails of the taps. The faucets can either be attached by using corrugated copper piping or with regular tap ports. The previous kind ought to be linked to the faucet ends initially, tightening up just by hand. The supply pipes can later on be attached to the other end. Tighten both ends with a spanner after both ends have actually been attached.
Tiling Around the Bathtub
In the area where the bathroom meets the tile, it is necessary to secure the accompanies a silicone rubber caulking. This is essential as the fitting can move enough to split an inflexible seal, causing the water to permeate the wall surface between the bath and the tiling, bring about complications with dampness and possible leaks to the ceiling below.
You can choose from a variety of coloured sealants to blend in your components and installations. They are offered in tubes and cartridges, and also are capable of securing spaces approximately a width of 3mm (1/8 inch). If you have a bigger space to load, you can load it with twists of soaked paper or soft rope. Remember to constantly load the tub with water before securing, to enable the movement experienced when the tub remains in use. The sealer can split relatively very early if you do not take into account this activity prior to securing.
Additionally, ceramic coving or quadrant ceramic tiles can be utilized to edge the bath or shower tray. Plastic strips of coving, which are easy to use and also cut to size, are likewise easily available on the market. It is recommended to fit the tiles using water-resistant or waterproof glue and cement.
How to Install or Replace a Bathtub
Find Your Dimensions
The first step in any bathtub installation or replacement is to select the right size tub for your bathroom. Start by measuring your existing bathtub’s alcove from wall to wall. The standard size for bathtubs is around 5 feet long and 30 or 32 inches wide. Purchase the size that’s closest to your previous tub.
After you’ve measured, you’ll need to figure out what type of tub you need. Face the alcove. If the drain is on the right-hand side, you’ll need a right drain tub. If it’s on the left, get a left drain tub. Easy enough, right?
Disconnect the Water Supply and Drain Assembly
Before you can start on your removal, make sure that you turn off the tub’s water supply. Some bathrooms have a shutoff valve, but if you don’t see one, you’ll need to turn off the supply at your house’s water main. Once the water’s off, open the valves to release any remaining air in the supply lines.
Then, disconnect the tub drain flange. This process varies based on the type of drain you have, but in most cases, you’ll need a drain flange removal tool to perform this task. If you’re feeling handy, you might be able to use a pair of needle-nose pliers to twist and pull the flange.
Now comes the fun part. In order to disconnect the drain assembly, you’ll need to be able to get to the space underneath the tub. You might need to access the tub drain from a crawlspace or a basement. Don’t forget to take a pipe wrench with you, as you’ll need it to loosen the pipe at the connection.
Cut Out the Old Tub
After removing the drainpipe assembly, you can take out the old bathtub. Cut a strip above the tub edge in the wall surrounding the bathtub that's about 6 inches in height. The tools you need here may vary depending on the type of wall surround you have in the alcove. If you’re cutting drywall, use a drywall saw and remove the section of the wall all the way down to the studs. If you have tile, you’ll need to use a grinder with a diamond blade to cut through the grout line. Then, use a chisel to remove the individual tiles. Take care here not to cut through any studs.
Find the tub flange. Remove the screws that attach the flange to the studs in the wall. At this point, the tub should be freed from the wall.
Once you’ve removed the flange, use a utility knife to cut away the caulk between the tub and the floor. When this is done, you should be able to lift the tub up and out of the alcove. Keep in mind that, depending on what it’s made of, the old tub could be tremendously heavy. You should plan to have a friend help you move it just in case.
Install the New Tub
Before you make any adjustments to the area, place the new tub in the alcove to make sure it fits properly and that the tub drain lines up with the P-trap underneath the floor.
Remove it and install a 2 x 4 ledger board. Measure the tub’s flange, then mark that height on the wall. Screw the ledger board to studs in the wall. This will help to support the weight of the tub.
Once the ledger board has been installed, go ahead and secure the drain to the tub. For this step, you’ll need some plumber’s putty. Roll a small amount of putty in your hands and wrap it around the underside of the drain flange. Push the drain into the tub from underneath the tub.
When the drain has been attached, connect the overflow drain. To do this, you’ll place the gasket on the overflow elbow and move it behind the tub. Once that’s on, connect the overflow pipe and the drainpipe, but take care not to overtighten.
Secure the Tub
After the connections are in, it’s time to set the tub in place. Before you start, make sure the flange lines up with the markings you made in Step 4. Because the ledger board holds the tub in place, it’s important that it matches up. If not, you’ll need to remove it and readjust.
Once your measurements line up, attach the flange to the studs on all three sides of the wall. Please note that you should not screw the flange to the wall. Instead, you should use roofing nails because they won’t rust over time. When the tub is in place, install the baseboard and the molding in front of and around the tub.
Repair and finish off the drywall or tile that you cut in Step 3. If you’re installing a fiberglass bath surround, now’s the time to adhere it to the alcove.
Then, enjoy your tub! While all these steps might seem intimidating, removing and installing a new bathtub is a relatively easy DIY project that can be completed in a single day. And now, when you settle in for your next bubbly soak, you can enjoy your bath without the distraction of a tub in disrepair.
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