Ep 201: Automatic Flush Toilets
Automatic Flush Toilets: The Future of Hands-Free… or Hands-Off Responsibility?
Welcome back to Privy, where we take everyday bathroom experiences and ask: “Was this a good idea, or did we over-engineer something that was already working?”
Today’s topic? Automatic flush toilets. Or as I like to call them: The overly eager bathroom assistant nobody asked for.
Before Sensors, There Was Chaos
Let’s rewind. For most of human history, “flushing” wasn’t really flushing. It was more like tossing water into a bucket, dumping things into the street (sorry, neighbors), or letting gravity and vibes handle the rest.
Ancient civilizations with early drainage systems to communal Roman latrines relied on moving water, but not control. You didn’t flush. You hoped.
Everything changed in 1596 when Sir John Harrington created one of the first recognizable flush toilets, complete with a cistern and a frankly aggressive 7.5 gallons of water per flush. That’s not a flush. That’s a hydraulic event.
The Evolution of the Flush
Over time, innovations from people like Alexander Cummings and Thomas Crapper refined the system with advanced tech like tanks, valves, chain pulls, and pressurized flush systems. Eventually, we landed on the modern toilet. You push the lever, the water goes, your problems are solved. Simple. Reliable. Beautiful. Naturally, humanity looked at that and said, “What if we removed the human entirely?”
Enter: The Automatic Flush
The dream? A completely hands-free bathroom experience. No touching handles. No germs. No responsibility. Early attempts included light-beam sensors (literally called “electronic eyes”) that detected movement. But the problem is, you’re sitting down with nothing to wave the sensor
So engineers refined the idea. Modern automatic flush systems like those developed by Sloan use infrared sensors that detect when you sit down (blocking the infrared beam) and when you stand up (unblocking the beam). And then they flush.
The Problem: Timing Is Everything
Automatic toilets suffer from one fatal flaw. They flush when THEY think you’re done, not when you are done. This leads to mid-poop surprise flushes, the dreaded courtesy splashback or as it is coloquially called a “mermaid kiss”, and that moment where you lean forward slightly and suddenly get baptized.
It’s like the toilet is saying, “I’ve seen enough.”
The Real Goal: Hygiene vs Reality
Automatic flush toilets were designed to solve the problem of germs. By removing the need to touch the handle, they reduce the spread of bacteria in public restrooms. This is great, but in doing so, they introduced a new problem. They made the toilet unpredictable. Bathrooms are one place where people really prefer predictability.
The Future: Smart Toilets Are Watching You
If you think automatic flushers are intense, just wait. The future of toilets is tied to smart technology led by companies like TOTO, pioneers of high-tech bathroom systems.
Some advancements include heated seats, built-in bidets, air dryers, motion sensors, and app connectivity to name a few. Toilets of the future will analyze your poop. That’s right. These toilets may track health data and send reports to your phone or even straight to your doctor. Nothing says progress like getting a push notification that says, “Hey… we need to talk about yesterday.”
The Big Question: Should Toilets Be This Smart?
At some point, we have to ask whether we really want our toilets thinking for themselves? Once your toilet is connected to Wi-Fi and tracking your habits, it’s no longer just a toilet; It’s… a participant. That feels like a boundary has been crossed.
Final Thoughts: Bring Back the Lever
Automatic flush toilets tried to solve a problem. They sought to make bathrooms cleaner and more convenient. And to their credit, they did. But they also introduced poorly timed flushes.
So maybe the future isn’t fully automatic. Maybe it’s balance. Maybe it’s a world where sensors help us, but humans maintain control. Because at the end of the day, it’s easier to just reach back and flush.
