Domakihub How to Install a Bidet Shower in Under an Hour
A simple DIY upgrade that adds hygiene and comfort to any bathroom.
Reviewed by Domakihub home & decor pros · 2026-06-23 · 5 min read
A bidet shower — also called a hand-held bidet sprayer or shattaf — is one of the easiest bathroom upgrades you can make, and it requires no specialist plumbing skills. The video above walks through the full installation visually; this guide breaks the process into five clear steps so you can follow along and complete the job in well under an hour. Whether you are upgrading a family home, a holiday rental in the islands, or a hotel suite, this is a low-cost improvement that guests and residents consistently notice.
What Is a Bidet Shower and Why Bother?
A bidet shower is a small hand-held spray head mounted beside the toilet on a short hose. It connects directly to the existing cold-water supply that feeds the toilet cistern, so there is no need to run new pipes or touch the drainage system. The unit costs between €15 and €60 at most Greek hardware stores (plakakia / ydravlika) or online retailers shipping to Greece.
In Greek homes and Aegean-island rentals, bidet showers are already a familiar feature, but older installations are often worn or missing. Adding or replacing one takes the same amount of time as changing a tap washer and dramatically improves the bathroom's hygiene rating — something short-term rental hosts on platforms like Airbnb increasingly highlight in their listings.
Tools and Parts You Will Need
Before you start, gather: the bidet sprayer kit (spray head, braided hose, and T-adapter valve), an adjustable spanner or wrench, PTFE thread-seal tape (teflon tape, sold at any ydravlika), and a small towel or bucket to catch residual water when you disconnect the supply line. No power tools are required.
Most kits come with all fittings included, but check that the T-adapter thread matches your existing fill-valve connection. In Greece the standard toilet supply connection is almost universally 3/8-inch BSP male, and most kits on the market are designed for exactly this size. If you are unsure, take a photo of your existing connection before buying.
How to Install a Bidet Shower: Step by Step
- 1
Shut Off the Water Supply
Locate the isolation valve on the cold-water supply pipe that runs to the toilet cistern — it is usually a small inline tap or a slot-head screw on the pipe behind or beside the toilet. Turn it clockwise until fully closed. Flush the toilet once to empty the cistern and release any remaining pressure in the line.
- 2
Disconnect the Existing Supply Hose
Use your adjustable spanner to unscrew the flexible braided hose that connects the isolation valve to the bottom of the cistern. Hold a towel or small bowl underneath, as a cup or two of water will drain out. Set the hose aside — you may be able to reuse it, depending on your kit.
- 3
Fit the T-Adapter Valve
Wrap two to three layers of PTFE tape clockwise around the male thread of your isolation valve. Thread the T-adapter onto the valve by hand, then tighten one-quarter turn with the spanner — do not over-tighten, as this can crack plastic fittings. The T-adapter now provides two outlets: one for the cistern supply hose and one for the bidet hose. Reconnect the cistern hose to the appropriate port.
- 4
Connect the Bidet Hose and Mount the Holder
Screw one end of the bidet's braided hose onto the remaining port of the T-adapter (hand-tight plus a quarter turn). Attach the other end to the spray head. Fix the wall-mounted holder to the tile at a comfortable height beside the toilet using the supplied screws and wall plugs — for tiled walls in Greek bathrooms, use a tile drill bit and the plastic anchors provided in the kit.
- 5
Turn On the Water and Check for Leaks
Slowly reopen the isolation valve and allow the cistern to refill. Inspect every connection — the T-adapter, both hose ends, and the spray head — for drips. If you see a weep at a threaded joint, close the valve, dry the joint, add another layer of PTFE tape, and retighten. Once all joints are dry, test the sprayer by pressing the trigger: the flow is controlled by a valve on the T-adapter or the spray head itself, depending on the model you chose.
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FAQ
- Do I need a plumber to install a bidet shower in Greece?
- No. A bidet shower connects to the toilet's existing cold-water supply using a T-adapter — no new pipes, no soldering, and no drainage work. The job is within the skill range of anyone comfortable with basic DIY. If you rent your property, check your tenancy agreement first, but the installation is completely reversible.
- Can I add a bidet shower to a toilet that has a concealed cistern?
- Yes, but you need to locate the service access panel to reach the isolation valve and supply hose. Most concealed cisterns in Greek apartments have a small tiled or plastic access door either above or beside the flush plate. The T-adapter installation is identical once you have access to the supply connection.
- Will the bidet sprayer reduce water pressure to my toilet cistern?
- In practice, no. The T-adapter splits the supply, but because you are never using both the cistern fill and the bidet sprayer at exactly the same moment, pressure loss is negligible. If your building already suffers from very low mains pressure (common on upper floors in older Athens apartment blocks), choose a kit with a full-bore brass T-adapter rather than a plastic one for the best flow rate.