Installing a macerating toilet doesn’t require major floor or ceiling modifications, allowing you to add a bathroom anywhere in your home and save thousands of dollars easily! Let’s take a look at how to install the SNFLEX Two Piece Macerating Toilet & SNFLEX One Piece Macerating Toilet!
Table of Contents
- Tools Needed for Installing a Macerating Toilet
- Steps to Install a Macerating Toilet
- Do You Need a Plumber?
- Tips for Installing a Macerating Toilet
Ⅰ. Tools Needed for Installing a Macerating Toilet
- SNFLEX Macerating Toilet
- Water supply
- Small discharge pipes
- Power source with GCI breaker
- Venting point (optional)
Ⅱ. Steps to Install a Macerating Toilet
Step1: Assemble the Macerator Pump
1. Understanding the Pump
- For Two Piece Model
It has 4 inlets for connecting a toilet, washing machine, shower, and sink, and 1 outlet for waste, which requires a check valve before connecting to a small discharge pipe.
- For One Piece Model
It has 3 inlets for connecting a toilet, washing machine, shower or sink, and 1 outlet for waste, which requires a check valve before connecting to a small discharge pipe.
2. Install the Check Valve
- For Two Piece Model
Cut to fit from 4 sizes: 7/8", 1-1/8", 1-1/4", 1-3/4" (23/28/32/44mm).
- For One Piece Model
Cut to fit from 2 sizes: 7/8", 1-1/8" (23/28mm).
3. Fix the Pump
- For Two Piece Model
- For One Piece Model
Simple Project one piece upflush toilet does not require drilling into the floor or using an extension pipe. Simply wrap some Teflon tape around the toilet outlet and insert it firmly into the pump. Once the position is confirmed, apply a bead of adhesive caulk along the base of the toilet to secure it.
* If you prefer to use an extension pipe, pair with this one.
Step2: Install the Ceramic Toilet and Tank (For Two Piece Model)
1. Anchor the toilet bowl
Anchor the toilet bowl to the floor using the fittings.
2. Assemble the tank
installing inlet and outlet valves and securing it to the bowl.
3. Connect the angle valve
4. Attach the flush button and toilet tank lid
5. Then install the toilet seat
* Important: You may also find this video helpful - How to Align Toilet Seat?
Step3: Connect the Macerator Pump to the Toilet Outlet (For Two Piece Model)
1. Place the pump behind the toilet
2. Extend the pump behind the wall
Step4: Connect Additional Inlets (Optional)
- If needed, connect it to a 1-1/2" discharge pipe for other fixtures.
* Important: You may also find this blog post helpful - How Do You Plumb a Shower to a Macerating Toilet?
- Otherwise, seal the unused inlets with a stopper and hose.
Step5: Vent the Pump (Optional)
- The SNFLEX macerator pump operates via a motor-driven pulse system and does not require external airflow to function. It also comes with a built-in activated carbon filter, making external venting optional unless required by local codes.
-
If you choose to add a vent:
👉 For two piece upflush toilet system
The vent outlet OD is 1-1/4". Use a slightly larger pipe, keep it short and straight, and direct it outdoors or to your home’s main vent line (The vent outlet is located at the carbon filter—simply remove the cap; there’s no need to take out the carbon filter).
👉 For one piece upflush toilet system
Similar to the two-piece model, the vent outlet size is 2".
To add a vent pipe, you'll need this extension pipe.
* Important: You may also find this blog post helpful - How to Vent a Macerating Toilet?
Step6: Connect the Pump to Power
- Plug the pump into a GFCI outlet for power
Ⅲ. Do You Need a Plumber?
- It completely depends on your skill level and preference. The macerating toilet is designed for easy installation, so even if you follow a DIY tutorial, it won't take much time or effort to complete. With just a bit of effort, you can easily manage the installation yourself.
- If you prefer to hire a plumber, a professional can typically complete the installation of the macerating toilet in just 30 minutes, assuming the pipes are already pre-installed.
Ⅳ. Tips for Installing a Macerating Toilet
1. Minimize Pipe Bends
