It's actually required by the International Plumbing Code to caulk a toilet to the floor, and now knowing the reasoning behind it, why would you not want to? It helps to create safety in the bathroom and even provides sanitary protection.
If there is no caulk, any water that creeps underneath the toilet can remain undisturbed for some time. It will soon start to stagnate, providing a breeding ground for mold and fungus. The application of caulk to the toilet prevents this from happening, and the bathroom is healthier as a result.
In my opinion, you should caulk around the entire edge of the toilet except at the front and the back. Just enough to leave a tiny gap so water can escape. Just leaving a gap at the back of the toilet does not let you see the water leak. This is why I recommend leaving one at the front and the back.
Caulk usually comes in a tube and 100% silicone caulk is best for use on a toilet since it's more resistant to water than other types of caulk, such as acrylic. Silicone caulk is typically a bit more expensive than other types, but that extra money will save you the problems that come with an improper seal.
Caulk is used to fill in the gaps between tile and fixtures (such as a bathtub or sink) or the floor and wall. Unlike grout, caulk is not used between the tiles, except where a vertical and horizontal tile surface meet, such as between a tile shower floor and tiled walls.
Apply a thin, even bead of caulk around the base of the toilet to cover the gap along the floor and hide the shims. If necessary, smooth the caulk with your finger, wiping your finger clean frequently with a paper towel or a rag.
If you notice the caulk around the base of your toilet start to turn brown, it means your toilet has a wax ring which is leaking. As a result, human waste especially urine is decolorizing the normally white caulk. The solution to this is to remove the toilet and put a new wax ring.
Caulk that utilizes silicone or latex is best for bathroom use. Silicone formulas (like GE Advanced Silicone caulk, available on Amazon) provide a stronger seal against moisture, but latex tends to be easier to work with.
Today the method most commonly used by plumbers to fix a toilet pan to the floor is with clear sanitary grade silicone.
How soon after I install a new toilet can I use it? Technically, a new toilet will work as soon as it's hooked up to the water supply line. But waiting until the caulk is fully dry is wise. Refer to the directions on your caulk tube for an ideal dry time, but know that most should be set within three to six hours.
Ensure Caulk is Cured and Dry
Silicone sealant dries in 30-60 minutes, reducing the risk of smudging or damage to the caulk's surface. However, that is just dry to the touch. You should always wait at least 24 hours before attempting to shower after a caulk installation.
If your sealant or silicone has gone yellow or is in the process of going yellow, don't worry. It is a common occurrence. Your sealant is likely going yellow because of exposure to UV radiation.
Plumber Mike Lombardi says: It is not only OK to apply a bead of sealant around the base of a toilet(see “Install a Toilet,” FHB #237), but it's also required by the International Plumbing Code and the International Residential Code.
Kleeneze White Caulk Tape is the easiest way to stop leaks around your bath, sink, shower tray or toilet base. No tools or mitring is required tomake this white caulk tape fit to any contour. The tape is self adhesive, waterproof and mildew resistant making it super easy to maintain as well.
Sealing joints on a damp surface should be strongly avoided, since silicone sealants generally do not adhere as well to moist substrates. If you want durable joints, never apply sealant in rain, freezing rain, snow or heavy fog.
The biggest downside of silicone, however, is that it is a lot harder to apply properly than grout. If you get it wrong or you don't take the time to smooth the line, silicone will dry with little gaps that water can seep under directly.
If the caulk is beginning to break down, it is a good idea to remove the old and apply the new caulk. What type of caulk for toilet base? It is recommended that you use a silicone base caulk due to its waterproofing capabilities. Let's take a look below at how to caulk our toilet base.
What forms green or brown stains in a toilet? Green or brown stains are a sign of lime buildup. It happens because of the evaporation of hard water that leaves behind mineral deposits. These minerals dry out and catch other dirt and bacteria around the buildup, creating layers of green and brown stains.
Brown stains can also come from iron bacteria, manganese bacteria or sulfur bacteria. These organisms grow in soil or shallow groundwater with high iron, manganese or sulfur concentrations. Water containing these bacteria leaves behind slimy brown rust deposits in plumbing fixtures and toilets.
Level the Toilet
If it does not sit perfectly flat, it will rock and is more likely to leak over time.
The gap in the seat is designed to “allow women to wipe the perineal area after using the toilet without contacting the seat,” she tells Slate.