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A Toilet With a Butt Shower – Retrofit or Buy New?

Published: 14.09.2026 2 min read
In Short

Retrofit, almost always. A bidet seat turns the toilet you already have into a toilet with a butt shower. Buying a new toilet only makes sense if the old one has to go anyway.

What We've Been Sold as Normal

“A toilet with a butt shower” sounds like a bathroom renovation: new ceramic, new plumbing, an appointment with a contractor. So plenty of people put the decision off until the bathroom gets redone someday. Someday rarely comes.

The Honest Explanation

There are three routes, and only one of them requires a new toilet.

Retrofitting with a bidet seat. It sits between the ceramic and the toilet seat. Water comes through a T-piece from the angle valve the tank is already attached to. Tools: usually a screwdriver. Everything comes back off without a trace, which is why it works in a rental too. Without electricity, the water comes cold from the pipe. With electricity, the device warms it – and then you need an outlet within reach.

Buying new: a shower toilet. A complete toilet with the technology built in. The old ceramic comes out, you usually need a power outlet right at the toilet, and installation is more of a job for a professional. It costs several times as much as a seat.

Changing nothing at all: the portable butt shower. A bottle with a nozzle that you fill yourself. No plumbing, no installation.

When buying new pays off: when the toilet is broken or old anyway, when the bathroom is being renovated, or when you don't want a visible hose or a control panel at the seat. In every other case, retrofitting is the shorter route to the same result.

Before you retrofit, check: the shape of the ceramic, the distance between the mounting holes, and whether the angle valve is within reach. It takes two minutes.

What You Often Hear – and What's True

“A seat looks like a makeshift fix.”
It lies flat under the toilet seat; what stays visible is a lever or control panel and a hose to the valve. If you want to see nothing at all, you really do need a shower toilet.

“Retrofitting only works on standard toilets.”
The vast majority of toilets in Europe are standard. The real obstacle is a concealed seat fixing with no through-holes.

“A shower toilet cleans better.”
Both clean with water. The difference lies in installation and comfort, not in how clean you get.

“Neither works in a rental.”
A seat does – it changes nothing about the bathroom and comes off without a trace.

Putting It in Context

The real question isn't “retrofit or buy.” It's this: does the toilet have to go anyway? If not, retrofitting is the answer.

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ALWAYS STAY
SQUEAKY CLEAN.
ALWAYS
SQUEAKY
CLEAN.
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