The Everyday Composting Toilet Routine

Daily use is five steps: use the toilet, add a scoop of carbon cover after solid use, check that the urine container is not nearing full, keep the seat and diverter clean, and confirm the lid is closed. That is the whole routine. Most of it takes less than thirty seconds. The system handles the rest.

THE ROUTINE AT A GLANCE

1.  Use the toilet normally.

2.  Add one scoop of carbon cover after solid use.

3.  Check the urine container level — empty before it is full.

4.  Wipe the seat and diverter if needed.

5.  Close the lid. Wash hands.

A composting toilet should not feel complicated. It should feel like a normal bathroom with a few better habits.

Most of the hesitation people feel before switching comes from imagining that daily use will require a lot of management. It does not. The system is designed so that the right behavior is also the easy behavior — you just add one small step after solid use, keep an eye on one container, and carry on with your day.

This guide walks through each part of the routine so that from day one, using the Renew feels completely natural.

Before First Use

A few minutes of setup before the first use makes the ongoing routine smoother. You only do this once.

1.  Confirm the vent is connected and the path is clear.  —  Air should be able to flow through the unit and out. Give the vent line a quick check end to end.

2.  Add a starter layer of carbon cover to the composting chamber.  —  A generous base layer — about two to three scoops — gives the system a head start on moisture absorption from the very first use.

3.  Place carbon cover within easy reach.  —  Right next to or above the toilet, where it is visible and easy to grab without thinking. If it requires a trip to a cabinet, people will skip it.

4.  If using Urine Odor Stabilizer, add the initial dose to the empty container.  —  This sets up the stabilizer chemistry before the container starts filling. Particularly useful in warm conditions or summer use.

5.  Make sure everyone in the household knows the one key step.  —  Carbon cover after solid use. That is the one thing every person who uses the toilet needs to know. Everything else is secondary.

Quick-start tip:  Keep the carbon cover container at eye level next to the toilet with a small scoop inside. The visual reminder is all most people need to build the habit in the first few days.

Get set up:

→ Carbon Cover

→ Renew Quick-Start Guide

After Each Use

The routine varies slightly depending on the type of use.

After solid use

1.  Add one scoop of carbon cover.  —  Enough to fully cover the surface. More is better than less — if in doubt, add a second scoop. This is the single most important step in the daily routine.

2.  Close the lid.  —  The lid keeps the composting environment contained and maintains the airflow path.

3.  Wash hands.

After liquid-only use

1.  No carbon cover needed.  —  Urine is diverted away from the composting chamber entirely.

2.  Close the lid.

3.  Wash hands.

That is genuinely the whole per-use routine. The carbon cover step adds about five seconds. If you run out of carbon cover mid-week and cannot add it immediately, it is not an emergency — but stock up promptly. A few uses without cover accumulates moisture faster than the system handles easily.

What to Check Daily

A quick daily check — thirty seconds, no tools — keeps everything running smoothly and catches any small issue before it becomes a noticeable one.

• Urine container level. Check visually or watch for a float sensor alert. Empty when it reaches about two-thirds full — before it gets urgent. A full container in warm weather develops ammonia quickly.

• Carbon cover supply. Enough material for the day's expected use? Refill the small container beside the toilet from your main supply before it runs out.

• Smell check. Open the lid briefly. The composting chamber should be neutral to faintly earthy — never sharp, acrid, or sewage-like. An unusual smell is a signal, not a crisis: check moisture level (too wet means more cover needed) or airflow (vent clear?).

• Lid seal. Closed fully. A partially open lid reduces the effectiveness of the vent path.

Most days, all four checks take less than a minute and everything is fine. The value is in the one day it is not — catching a nearly full container before a guest arrives, or noticing the cover is almost out on a Sunday morning.

What Guests Need to Know

This is the section most composting toilet owners actually need. Having guests is the scenario that creates the most anxiety for new owners — the worry that the toilet will be confusing, that someone will do it wrong, or that it will become an awkward conversation.

The reality is that guests need to know exactly three things, and most people find it easy once it is explained simply:

1.  Use it normally.  —  It works like any other toilet. Sit down, use it.

2.  Add a scoop of the stuff in the container on the left after going number two.  —  One scoop. Into the bowl. You do not need to explain what it is or why — just where and how much.

3.  Close the lid when you are done.

A small printed card mounted near the toilet eliminates the need for any verbal explanation at all. Something clean and simple: "After solid use, add one scoop of carbon cover (container beside the toilet). Close the lid. Thank you." That is all it needs to say.

If a guest does not add cover, or adds too much, or uses the toilet without noticing the instructions — the system handles it. One missed step is not a problem. Consistent use over time is what matters, and guests are temporary. Do not let the guest scenario stop you from making the switch.

What Not to Put in the Toilet

A composting toilet is a biological system. What goes in affects what the microbes can work with. A short list of things to keep out keeps the system healthy and the maintenance simple.

Do not put these in the composting chamber:

• Wet wipes or "flushable" wipes — they do not break down and will clog or mat the chamber

• Feminine hygiene products — bag and dispose of separately

• Condoms or latex products — do not compost

• Medications or supplements — can disrupt microbial activity

• Cooking grease or food waste — not what the system is designed for

• Harsh chemical cleaners or bleach — kills the bacteria doing the work

• Large amounts of water — the system is designed to stay dry

Toilet paper:

Small amounts of standard or bamboo toilet paper are fine in the composting chamber. The key word is small — a modest wipe, not a wadded handful. Bamboo toilet paper breaks down faster than standard paper and is the better choice for composting system health. If you use more paper than usual, or if you are in a high-use period, consider bagging it separately rather than sending it into the chamber.

Simplest rule:  If it did not come out of your body, it probably should not go in the toilet. When in doubt, bag it out.

Stock the right consumables:

→ Carbon Cover

→ Renew Quick-Start Guide

Frequently Asked Questions

How do you use a composting toilet every day?

Use it the same way you would any toilet. After solid use, add one scoop of carbon cover into the bowl — this controls moisture, covers the material, and keeps the composting chamber aerobic. After liquid-only use, no cover is needed. Check the urine container level daily and empty before it is full. Keep the lid closed when not in use. That is the complete daily routine for the Renew.

Do I add carbon cover every single time?

Only after solid use. Liquid-only visits do not require cover because urine is diverted away from the composting chamber entirely and does not reach the material that cover is managing. One scoop after solid use, every time. Consistent cover use is what keeps the chamber aerobic, odor-free, and in good condition between empties.

Can guests use a composting toilet easily?

Yes — most guests find it straightforward once they understand the one step that is different from a standard toilet. A small printed instruction card mounted near the toilet handles the explanation automatically. The card only needs to say: after solid use, add one scoop of the carbon cover (container beside the toilet), and close the lid. No technical explanation needed. If a guest skips the step occasionally, the system handles it without issue.

Can toilet paper go in a composting toilet?

Small amounts of standard or bamboo toilet paper can go in the composting chamber without problems. Bamboo toilet paper breaks down faster and is the better long-term choice for system health. What should not go in: wet wipes, "flushable" wipes, paper towels, or large wads of any paper product. If you use significant amounts of toilet paper in a single use, consider bagging it separately rather than adding it to the chamber.

What does it smell like day to day?

When the routine is consistent, there should be no noticeable smell in the bathroom at all. The vent path draws air through the unit and out, and the carbon cover keeps the composting chamber aerobic and neutral. A faint earthy smell when the lid is opened is normal and not a problem. A sharp or ammonia smell is a signal to check the urine container level, which is usually the cause. A sewage-type smell points to insufficient carbon cover or an airflow issue — both quick fixes.

How long does the carbon cover last before I need to restock?

It depends on household size and use frequency. For two adults, a standard supply of carbon cover typically lasts two to four weeks. The easiest approach is to keep a main supply somewhere convenient and refill the small container beside the toilet before it runs out — rather than waiting until it is empty. Running out mid-week is a common early-user experience; keeping a slightly larger backup on hand fixes it permanently.

A composting toilet becomes normal very quickly. Within a few days, the routine is just the routine — use, add a scoop, close the lid. The things that feel unfamiliar before you start stop registering as different at all.

The goal is not to turn every user into a compost expert. The goal is a bathroom that is clean, odor-free, and easy to maintain — every day, for every person who uses it. That is what the Renew is built to be.

Everything you need for day one:

→ Carbon Cover

→ Renew Quick-Start Guide