Tips on Installing a Macerating Toilet


A macerating toilet system enables a toilet to be located underneath or at some distance away from a home’s main waste pipe, often known as a soil stack. This is possible because the macerating toilet system breaks down solid waste into smaller pieces. The waste is shredded and turned into a liquid in a macerating toilet, which allows it to be sent to the drain line via a conduit that is rather narrow. Even because macerating toilets have certain installation requirements that are not like those of regular toilets, it is nevertheless feasible for the majority of homeowners to set one up in their house.

Determine Placement of the Macerator

A tank known as the macerator may be found hiding underneath the toilet itself. The macerator, which processes the waste and wastewater, receives input straight from your toilet. With the assistance of an electric pump, the macerator then evicts the waste and wastewater via a discharge line. The macerator may also be used to service other fixtures in the bathroom, such as the sink or the shower, although it can only service one toilet at a time. Although the tank and the tubing that connects it are often exposed for see in the bathroom, this is not always the case.

The tank may be mounted on the wall behind the toilet in order to save space. Because of this, the extension component used to connect the toilet has to be longer. PEX Universe suggests making use of an extension pipe that is 18 inches in diameter for this purpose. In addition to this, you will need to build a wall panel that can be removed from behind the toilet in order to get access to the tank in the event that repairs are required.

Keep Your Bends Gradual

You may be curious in how to set up a macerating toilet in your bathroom. The majority of macerating toilets are put in locations that cannot accommodate a normal toilet. This indicates that the waste may need to travel a considerable distance down the pipe lines before it can reach the main drain in the home. Make a delicate bend with the pipe whenever you need to round a curve or alter the direction it’s going in so that you may get the longest possible runs out of the pipe. According to, it is best to utilise “long turn” fittings for all bends. This recommendation can be seen on their website. To perform a turn of 90 degrees, it is preferable to utilise two elbows at 45 degrees rather than a single elbow at 90 degrees in the event that this is not possible.

If your waste pipe has to go up at any point in its course, the vertical part of the pipe should be located as near to the macerator as is physically practicable. Because one foot of vertical height is equivalent to ten feet of horizontal run, the maximum length of a discharge pipe is finite. If you do not lay your pipes in such a way as to maximise the amount of permitted distance, you will fast exceed the maximum length of a discharge pipe.

Go Vertical First

It is not possible to run the discharge pipe vertically, then horizontally, then vertically again. The discharge piping can only have one vertical segment. Horizontal runs make advantage of gravity to carry waste and should be placed with a standard slope of 1/4 inch per foot in the direction of the main drain to facilitate this movement.

Because your macerating toilet is powered by electricity, there must be an outlet located close enough to the toilet so that its cable can reach it without having to be pulled or extended. Using an extension cord is not an option. In addition, this outlet has to be placed more than 100 centimetres (40 inches) away from the shower. Given that this is a restroom, you will need to check to see if the outlet has a Ground Fault Circuit Interrupter (GFCI) built into it. It is not possible to regulate it using a switch.

GFCI Electrical Outlet

Your macerating toilet runs on electricity, so there needs to be an outlet near enough to the toilet that its cord can reach it without pulling and without an extension cord. This outlet must be located more than 40-inches away from the shower, as well. Because this is a bathroom, you will need to make sure the outlet is a Ground Fault Circuit Interrupter (GFCI) outlet. It cannot be switch-controlled.