Plumbing in the bathroom crashes quite often. There can be many reasons for this, but the outcome is always the same - the equipment must be replaced. This is where the main question arises: how to replace the toilet with our own hands qualitatively and without unnecessary movements?
Good preparation is the key to success. Get the necessary set of tools, related materials and detailed instructions for beginners. Following the recommendations set forth in the article, and taking into account possible errors, you will manage to replace the toilet yourself.
How to understand that it’s time to change the toilet?
At first glance, the wording may seem strange. Anyone understands that the toilet needs to be changed when it is out of order. But in fact, most of the problems associated with malfunctions of the sewer system and the toilet in particular, can be eliminated without replacing the plumbing.
Most often, the following malfunctions occur:
- flowing from a tank;
- flowing from under the bowl;
- cracks on ceramics;
- bad smell from the sewer.
If water constantly flows from your tank, this is a serious reason to think. Such uneconomical consumption of water is contrary to the current trend of protecting the environment and saving natural resources. If it drips from the tank onto the floor and you are tired of putting up the basins, and all the pipe connections are normal, most likely the fault was a chip or a crack.
In this case, you can only temporarily solve the problem, but the toilet should be replaced as soon as possible. But if the water from the tank flows down the wall of the bowl into the sewer - good news, most likely there is no need to change the plumbing.
The cause of this malfunction is often a leaky valve. Fortunately, the entire interior of the drain tank is sold separately, it can simply be replaced.
Plumbing faience and porcelain are fragile materials, unstable to sudden changes in temperature. Enamel can be covered with a network of cracks, which not only spoil the aesthetic appearance, but also threaten the destruction of the entire product.
Such a crack is a bad sign. It could appear as a result of a fall of something heavy or simply from a temperature difference
If cracks or chips appear on the toilet, try to replace as soon as possible. You never know at what point ceramics can not stand and burst under the weight of a person, exposure to water or simply from internal stress.
Well, if at that moment someone is nearby and can quickly eliminate the consequences of the disaster, otherwise you can count on the upcoming repairs in the toilet at the neighbors below.
In this case, everything is already clear - there must be a replacement! Unfortunately, this happens very often and not only with old toilets
The unpleasant smell of sewage in the toilet is another bad sign. Often the reason for this is the incorrect location of the pipes when the drains are delayed in the sewer. But if you are convinced that everything is in order with the pipeline and you can be sure that the faience is clean, look for the reason for the destruction of the glossy ceramic coating.
If the enamel is corroded and the porous sanitary ware begins to come into contact with dirty drains, it will soon begin to absorb and absorb unpleasant odors. It will not work to remove them, such destruction is an irreversible process. Here, a complete replacement of plumbing is indispensable.
Replacing the toilet with a complete conversion of the bathroom is just one of the steps. Think in advance about the place for new plumbing to bring out the plumbing and sewer
Another reason to change the toilet is repairing the toilet. Few people want to leave the old plumbing with a complete change in the design of the bathroom. This is certainly a good occasion.
New plumbing models appear regularly, and it is difficult to keep up with fashion. You choose a classic model or an unusual instance from the fashion catalog - the replacement will be carried out according to the same principle.
What needs to be prepared in advance?
Before you change the old toilet bowl with your own hands, you need to prepare for work. Especially carefully you need to think through everything if the replacement is carried out in the toilet, which continues to be used. In this situation, plumbing needs to be replaced quickly, but without proper organization this is impossible.
Choose the right model, prepare all the necessary tools and supplies, and then you can get started.
Choosing the type of new toilet
The most important thing is to buy a new toilet. Then, depending on your choice, a set of tools and materials for replacement will be selected.
These types are distinguished:
- floor;
- outboard.
Floor models. Such bowls are more common and their choice is very wide. Replacing an old floor toilet with a new one is the most common story. There are floor models such as "monoblock", "compact", separate bowl and tank, as well as with a hidden drainage system.
Monoblock toilet is stylish, but not practical. If the tank fails, you will have to change the entire system. With a compact this will not happen
Monoblock is a product that combines both a bowl and a tank. The toilet bowl compact is when the tank and bowl are supplied and are connected during installation. This is the most popular option on our plumbing market.
A retro model, when the tank is located under the ceiling and is connected to the toilet by a pipeline, and to drain it is necessary to “pull the rope” is becoming less common. She looks good in the interior of the corresponding style.
The modern option is a hidden drainage system. To replace a conventional toilet with such a one, it will be necessary to build a false wall, behind which a tank with an installation system will be hidden. Outwardly, such models look very neat, there is only a drain button on the wall, and all communications are hidden.
Thanks to its placement on the wall, the toilet appears to be floating in the air. But it is not attached to the wall, but to the steel frame, which is hidden in the wall. Withstands weight up to 400 kg
Hanging bowls. Such toilets are not installed on the floor, they are hung on special anchor bolts on the wall. Thus, under the bowl there is free space that can be used to good use.
And from a hygienic point of view, such a design wins. It’s easy to clean the floor under the wall-mounted toilet, and dirt often gathers around the floor.
Another detail that is important to consider when replacing a toilet bowl with your own hands is the direction of release.
There are 3 varieties:
- outlet at an angle;
- straight;
- vertical.
A popular option is direct horizontal release. The toilet is connected to the sewer pipe on the same level. Oblique issue was used in the Soviet multi-story building, but it still exists today.
Externally, toilets may look exactly the same, but because of the different location of the outlet, you need to be careful about the choice
But devices with vertical drain are installed more often in America and China. Convenience lies in the fact that the toilet can be installed anywhere, communications are made inside the floor. With us it is possible in private homes.
Practical tips for choosing a toilet are outlined in this article.
A set of necessary tools for work
A set of plumbing tools to replace the old toilet is standard. Depending on the condition of the old equipment that will have to be dismantled, and the sewer pipes, as well as on the chosen method of fastening the new plumbing fixture, the set of necessary tools may vary slightly.
Prepare the following items:
- hammer drill;
- adjustable wrench;
- a screwdriver;
- hacksaw for metal or grinder;
- gun for sealant;
- hammer and chisel;
- rubber spatula;
- building level;
- personal protective equipment - glasses, gloves.
A puncher will be needed to knock out holes in concrete under the dowels, on which a new toilet bowl will be mounted. Adjustable wrench works on connecting the water supply. To tighten the screws, you need a flat or Phillips screwdriver, and to seal the joints, you need a gun for a cylinder with a sealant.
In disassembled form, a modern compact toilet bowl looks like this. A set of fasteners, rubber o-rings and a tank drain mechanism can be packaged separately. No need to be scared, it all comes together as a constructor
A hammer and chisel can come in handy if the equipment was connected to an old Soviet sewer riser made of cast iron. To ensure that the bowl is level, use the building level.
Material List
In addition to a set of tools for replacing the toilet bowl with your own hands, you need to purchase additional materials that will be needed during installation:
- sealant;
- corrugation to connect to the riser;
- pipe for connecting to the water supply;
- FUM tape;
- crane;
- mounting kit.
In any plumbing issue, the moment of sealing is the main thing. Any gap or loose connection may cause leakage.
Silicone sealant in the bottle is the best friend when replacing the toilet. They fill all the cracks and gaps, process connections
To connect a plumbing fixture to the sewer, you need to buy a special plastic corrugated pipe. This is convenient because the pipe is flexible and suitable in most cases. It can be bent to any position, stretched and squeezed.
Corrugated pipe for connecting the toilet to the sewer is universal. It is suitable for both horizontal and angled outlets. Bowls with vertical drain are connected in a special way - using a special elastic cuff
To seal the joints, use a sealing tape or tow - the old fashioned way. The fixing kit for replacing the toilet includes dowels, screws, bolts, washers, nuts, plugs for connecting all components and installation. Do not be alarmed if something is missing, all this can be bought separately.
Dismantling an old toilet
To replace the old toilet with a new one, you must first dismantle the equipment. If the plumbing is not too ancient, most likely there will be no problems with dismantling.
Another thing is if the plumbing is actually very old, and the Soviet-style cast-iron sewer pipes. Here you have to sweat. But first things first.
If the old plumbing is not concreted to the floor tightly, consider yourself lucky. A toilet mounted on a wooden stand is easier to remove. The remains of the tree will need to be removed, and a hole in the floor should be filled with a screed
If everything is not so bad, and the toilet is not so ancient, replacing it will be easier:
- Turn off the water supply. Drain the water tank.
- Prepare a bucket and rags.
- Disconnect the reservoir by unscrewing the bolts from below.
- Remove the corrugation or plastic cam that connect the outlet of the bowl to the sewer.
- Remove the remaining water from the bowl with a regular sponge.
- Look at the mounts on the sides of the base. There should be 2 or 4. Unscrew them with a wrench.
- Remove the silicone sealant from the base with a knife.
- Remove the bowl from the tile.
In the last century, they tried to make repairs "for centuries", thoroughly. And the installation of plumbing was no exception.
Often you can find in the apartments toilets, set on a solution, embedded in a screed, rewound at the base with rags and covered with several layers of paint. At the same time, the connection with the pipe is smeared with a thick layer of cement. Now it seems ridiculous, until you come across the replacement of such a rarity personally.
If you can’t unscrew it, you have to beat it. Be careful, do not forget about protecting eyes and hands from shards of faience
If you are not sorry for the ceramics, you can dismantle it in parts. A hammer and chisel come in handy here. Knock at the junction of the bowl with the pipe, while swinging the mount.
If it does not give in, hit boldly on the neck of the toilet bowl, it will crack. Now it can be removed. Just do not hit the pig-iron pipe with a hammer, it is also very fragile and can crack.
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Old plumbing on the tiled floor
Using taffeta with concrete screed
Connection to the sewerage by a pig-iron pipe
Floor repair before installing a new toilet
Installing a new plumbing fixture: what needs to be considered?
When the old toilet is successfully dismantled, it is time to replace the plumbing with a new one. The installation process differs depending on the type of model selected. The mounting of the bowl with the floor mount and the mounted model with a hidden tank is carried out by different methods.
Step-by-step installation instructions will help you do this task yourself.
Toilet bowl compact - a step-by-step installation master class
In order to replace the old toilet with a floor type “compact”, if the installation will be on a tiled floor, follow our recommendations:
- Decide on the location of the new toilet. Put the bowl in the toilet without fastening, try to sit on it, try on several options.
- When you have exactly decided on the place, circle the base with a washable marker. Mark with a marker the attachment points.
- Put the plumbing aside. All necessary marks remained on the floor. Take a drill with a 12th drill and drill holes in the tile. It is better to beat concrete with a perforator with a No. 12 drill. Insert the dowels into the holes.
- Take the corrugation or cuff with which you will connect the outlet to the sewer. Install it in place, having missed the joint with a sealant.
- Place the new flush toilet bowl in the correct position. Insert the bolts into the mounting ears and screw them in using the adjustable wrench. Do not overdo it, so as not to squeeze and crack ceramics.
- Attach the toilet to the sewer. Treat all joints with silicone.
- Put the tank on the bowl. Connect the elements with bolts.
- You can connect the device to the water supply.
Check all joints and threaded connections for leaks. If everything is fine, you can start using plumbing.
This is how the process of replacing the toilet looks step by step. Nothing complicated: drill, hammer, tighten, connect to the tank. Even a novice can handle (+)
Such a floor toilet is easier to replace than to describe the process in words. Modern models are designed so that the flooring is not damaged.
The steps in the installation process of a compact type toilet bowl will be presented by the following photo selection:
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Before installing new plumbing, it is recommended to repair the room, change the damaged parts of the water supply and sewer system
We get the model of the toilet you like, do not forget to inspect the equipment for cracks and other damage
Having installed the toilet in the box, we move it around the bathroom, trying to choose the most convenient place to use and connect
Depending on the chosen installation location and the angular or direct connection method to the communications, we purchase polypropylene pipes Ø 110 mm, tees and corner fittings of the same diameter
We assemble the sewer outlet from new polypropylene pipes; in the joints we use the bell-shaped technology. We try to release the toilet, mark the attachment points
We collect bell-shaped connections with the obligatory use of O-rings, laying them in each joint of the pipeline being constructed
At the outlet of the fan pipe we put a ventilation valve that guarantees a complete discharge of contaminated air
In the points marked during the fitting, we drill holes for fasteners. While drilling the tiles, we regularly wet them so that the drill does not overheat
Step 1: Repair the room before installing the plumbing
Step 2: Purchase Plumbing to Replace
Step 3: Choosing the best place to install the device
Step 4: Procurement of pipes and accessories depending on the location
Step 5: Assembling the Sewerage Connection Node
Step 6: Using gaskets in socket edges
Step 7: Install the Vent Valve
Step 8: Drilling holes for mounting screws
After the successful completion of preparatory work, we proceed to fastening and connecting important plumbing in everyday life:
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On the place chosen for installation, we lay a shock-absorbing pad, which can be silicone sheet, penoflex or both materials together. We put fasteners in the mounting holes
We tighten the screws installed in the holes without applying excessive force so as not to damage the earthenware fixtures
Carefully cut off the excess cushioning pad around the bottom of the toilet bowl with a knife
We screw plastic nuts from the tank mounts. We put a rubber sealant in the hole connecting the tank with the bowl or put it on the bottom of the tank
We install a drain valve in the toilet bowl and introduce the fasteners from which the plastic nuts were screwed
We fix the tank under the toilet shelf with plastic nuts. We twist carefully, trying not to break the thread. We connect a flexible hose for water supply to the tank
We connect a flexible hose connected to the tank to the water supply branch using a tee with a tap, so that you can block the water for repairs
Pour water into the toilet bowl to check for leaks. If everything is in order, open the tap of the water supply line and begin operation
Step 9: Attaching the toilet to the prepared base
Step 10: Fixing the toilet to the floor with fixing screws
Step 11: Cut the cushion pad around the foot
Step 12: Preparing to Install the Flush Tank
Step 13: Installing the Drain Valve in the Toilet Tank
Step 14: Fixing the Tank and Flexible Tank Connector
Step 15: Using a Tee to Connect
Step 16: Verify the installation and connection of the toilet
Features of the installation of toilets with different types of release are described in these articles:
- How to install a toilet with an oblique outlet: detailed technical instructions
- Vertical release toilet: how it works and how, pros and cons, step-by-step installation instructions
Installation: hinged bowl and hidden tank
Replacing a conventional toilet with a hanging toilet with a hidden drain tank is much more difficult than the previous version. Here, not only the replacement of equipment is carried out, but also the repair of the flooring, and the construction of a false wall, followed by finishing with tiles or other materials.
The hinged bowl is attached to a solid installation. After finishing the walls, the metal frame is not visible, the design becomes light. It is better to install a hinged washbasin in the bathroom and the same bidet in design so that the picture is complete
Detailed description of how to change a conventional toilet for a hinged structure:
- Mark the installation location. A 110 mm sewer pipe and water supply are brought to the selected site.
- Try on the purchased installation (rigid frame for installation). Decide on the height. The standard placement is 450 mm from the floor to the seat and 100 mm from the floor to the bottom of the bowl.
- Mark the points of attachment to the floor and wall with a marker so that they exactly coincide with the mounting holes.
- Drill holes with a hammer drill and install the frame. Ensure proper installation with a level.
- Connect water to the drain tank.
- Included with the installation is a plan to cut a sheet of drywall to sew up the installation site. Fix the drywall to the metal profile and directly to the installation. It is better to use moisture resistant materials.
- Finish as you wish.
- It's time to replace the toilet bowl itself. Connect it to the sewer corrugation to connect to the pipe. Do not forget about the sealant.
- Screw the bowl directly to the installation frame through the tiles and drywall with studs.
- Connect the device to the sewer and the drain tank.
Despite the fact that replacing the toilet with a hinged toilet will take longer, it's worth it, because such plumbing looks expensive and stylish.
Installing an electronic toilet bowl, complemented by automatic hygiene functions, is similar to the process of mounting and connecting a simple plumbing fixture, but still has its own nuances:
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Installation and connection of a suspended intelligent toilet is made for installation by analogy with a conventional one. But this device requires power, for which they usually draw a separate line due to the sensitivity of smart technology
Depending on the location of the plumbers, the installation is selected. For installation near the load-bearing wall, block structures are used, frame structures are mounted in any convenient place, masked by a false wall
The wall-mounted toilet bowl is mounted in the installation. Its fixation is done earlier than fixing the toilet
The technology for fixing the toilet on the installation allows you to choose the optimal height for the bowl for users
To connect to communication networks, sealed adapters are installed, the drainage system is fixed in the installation, the water line is connected to the tank from the side or from the bottom
To supply a washing jet, hydromassage, and drainage, the toilet is equipped with extendable nozzles
Smart plumbing is controlled using the remote control, it also has buttons for selecting functions and automating programs. In addition, the toilet is equipped with mechanical buttons in case of a power outage.
In the assortment of smart toilets with a bidet function, there are models with water heaters, they are connected only to the HVS. There are models with mixers, they are connected to the hot water pipes and the hot water lines
Electronic hanging toilet in the bathroom
Fixing the support frame to the supporting wall
Fixing the toilet bowl and fitting
Plumbing height adjustment
Adapters for connecting communications
Smart wall hung toilet nozzles
Remote for program selection and control
WC-mounted water heater
How to avoid common mistakes?
Replacing the toilet in the toilet with your own hands and not making mistakes is difficult, especially when there is little or no experience with plumbing. We have collected a number of the most common plumbing errors that beginners make when replacing toilets.
This list will help you avoid unpleasant surprises during the installation process.
Rule number 1. So that the water in the sewer does not stagnate, it is imperative to observe the slope. The building code says about a 3-5% slope towards the riser. If you decide not just to replace the toilet, but also move it to a new place, do not forget about this rule.
When you rearrange the bowl 1 m further from the riser, you need to raise it 3-5 cm. And so on every meter. Then there will be no problems with drains.
Rule number 2. Some are in a hurry to change the toilet at the very beginning of the repair in the toilet. If possible, this should be avoided. The reason is that the faience sanitary ware is very fragile and with further construction work in the toilet there is too much chance of damage to it. Change ceramics last.
Instead of tow, sealing tape is often used now. It is sold in coils and is easy to use. Be sure to seal the threaded connections when connecting to the water supply during the replacement of plumbing
Rule number 3. If a bidet is installed in your bathroom, the wall-mounted toilet should be flush with its top edge. Then the plumbing looks harmonious and it is more convenient to use it.
Rule number 4. Replacement of sewer pipes must be accompanied by the installation of revisions. Access to the inspection hatches in the walls should always be free, since there are aesthetic doors on sale for these purposes.
It is impossible to neglect these rules, otherwise during the current repair or emergency you may find yourself in an extremely uncomfortable position.
The video clearly shows how the toilet looks after dismantling the old toilet bowl with a hammer. The author of the video sets the new bowl in place of the old one and connects it to the cast-iron pipe.
Visual aid for installing the toilet on the installation:
Instructions for those who plan to replace their plumbing with a new floor type. An example of mounting on a tiled floor is shown:
Changing the toilet without the help of a professional is a rather risky undertaking. It is possible to spoil the tiles on the floor or, in the worst case, to break the pottery. But if you are one of those who are not afraid of difficulties and confident in their abilities, take on the job. The main thing is not to rush and strictly follow the instructions.
Do you have practical toilet replacement skills? Share your knowledge or ask questions about the selection, dismantling and installation of plumbing. The comment form is located below.