A healthcare professional reviewing documentation with an older client during an in-home assessment

23 October 2026

Bidet Toilets

If you’re an occupational therapist or support coordinator looking to make a confident OT bidet recommendation in Australia, there are a few things to note before deciding. The bidet seat needs to be WaterMark certified, and the installation needs to comply with WA backflow rules. It’s important to understand when a bidet recommendation is appropriate, what compliant installation involves, and how working with a specialist installer in Perth makes the referral process straightforward for your caseload.

When a bidet recommendation makes sense

You’ve already worked out that a bidet is the right call for your client. The harder question is usually the next one: who do I recommend, and will the supplier and installer hold up if something goes sideways? Not every client on your caseload needs a bidet, but for the ones who do, it tends to be obvious once you look at what’s happening during toileting.

The clients who benefit most are those with limited upper-limb function, restricted trunk rotation, reduced standing balance, or skin integrity concerns from repeated wiping. Progressive neurological conditions, such as MS, Parkinson’s, or spinal cord injury, often bring a steady decline in toileting independence, and a bidet can slow that slide considerably. Post-surgical clients who’ve been told not to twist or reach are another common fit. 

There are times when a bidet isn’t the right call, too. If a client is over 200 kg, there’s currently no bidet seat sold in Australia with a safe working limit above that. If they’re using a mobile shower commode over the toilet, the commode can damage the bidet seat and interfere with hygiene. If cognitive impairment means the client can’t understand the controls and there’s no carer available to supervise, the risk may outweigh the benefit.

For background on how bidets support OT assessments and reduce carer strain, our guide on bidets as bathroom assistive technology covers that ground in detail.

What compliant installation looks like in WA

Licensed plumber installing a bidet seat at a client's home in Perth

When you make an occupational therapist bidet recommendation in WA, the installation needs to meet specific plumbing standards. If something goes wrong down the track, your name is attached to the recommendation. Here’s what a compliant bidet system looks like.

WaterMark certification

Every bidet seat installed in WA must be WaterMark certified. A WaterMark-certified seat has been tested and listed on the national product database. If someone is offering a seat that isn’t WaterMark certified, you shouldn’t accept it.

Backflow protection

Under the Plumbing Code of Australia, any bidet seat where the spray outlet sits below 25 mm above the toilet pan’s overflow level is classified as a high-hazard cross-connection. That means it needs high-hazard backflow protection, either built into the seat or installed externally. 

Some seats, like the Caroma Livewell, have an integral air gap that meets this requirement. Others need an external reduced pressure zone device (RPZD), which adds cost, needs specific placement, and requires annual testing by a licensed plumber.

Power supply

Electric bidet seats need a general-purpose outlet (GPO) near the toilet. Extension cords and power boards aren’t permitted. If there’s no outlet nearby, a licensed electrician needs to install one as part of the job.

What “AS 1428.1 compliant” does and doesn’t mean

If your clients include people in accessible bathrooms, this matters. AS 1428.1 sets the design standards for accessible sanitary facilities in buildings, including seat height (460–480 mm), luminance contrast, load rating, backrest positioning, and circulation space.

A bidet seat changes the toilet’s geometry. It raises the seat height, alters the surface contrast, and changes the load path. Whether the combined installation still meets AS 1428.1 depends on the specific pan, seat, and room.

No bidet seat on the market is “AS 1428.1 compliant” as a standalone product. What matters is whether the installed combination works. That’s something we check as part of every installation: seat height, clearances, load rating, and how it all fits in your client’s bathroom.

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How the referral process works 

We’ve set this process up to take the work off your plate, not add to it. Here’s what an OT bidet recommendation looks like in Australia when you work with us.

Your side

  1. Assess the client. Identify that a bidet is appropriate and note the relevant functional limitations.
  2. Complete our Remote Evaluation Checklist. It captures pan shape, cistern clearance, GPO location, and water inlet position, the measurements we need to quote accurately, gathered upfront so there’s less back-and-forth.
  3. Submit the checklist with a quote request. We’ll come back with an itemised, funding-ready quote, formatted for NDIS, AT-HM, or DVA submission. No reformatting needed.

That’s it on your end. From here, you submit to the plan manager, NDIA, AT-HM scheme, or DVA with your recommendation and our quote, and we handle the rest.

Our side

We take care of supply, installation, commissioning, and all installation compliance. You don’t need to verify any of that yourself. Post-installation, our seven-year workmanship warranty means fewer follow-up issues landing back on your desk.

Turnaround depends on product availability and your client’s location, and we’ll confirm scheduling when we provide the quote. Most straightforward installations, where there’s an existing GPO and the pan is compatible, are completed in a single visit once the product is in hand.

The process is the same whether it’s your first referral or your fifteenth. We work with OTs across Perth on an ongoing basis, and the goal is to make this a reliable part of your caseload workflow, not a one-off transaction you have to re-figure each time. For full details, including the downloadable checklist and quote form, visit our medical and disability solutions page.

Product fit by clinical need

We stock a range of bidet seats, and when it comes to an OT bidet recommendation in Australia, the right one depends on what your client needs functionally.

Caroma Livewell electronic bidet seat installed in a modern bathroom

The Caroma Livewell is our most recommended for NDIS bidet and aged care referrals. It carries a 250 kg load rating, remote control, adjustable spray and temperature, air drying, and a self-cleaning nozzle. It’s WaterMark certified with integral backflow protection, which simplifies the installation and keeps costs down.

Wall-hung Toto Washlet bidet with wall-mounted remote control panel in a contemporary bathroom

The Toto Washlet range covers multiple comfort levels and price points. Pulsating spray, deodoriser, and multiple user presets make it a strong option for clients with progressive conditions who’ll be using the bidet long-term, or households where multiple people use the same bathroom.

Roca In-Wash Inspira smart bidet with lateral keypad controls, suited to clients who prefer direct operation over a remote

The Roca In-Wash Inspira has a lateral keypad for direct, simple control. This is a good fit for clients who might find a remote confusing. The night light and presence sensor also help with night-time toileting safety.

Ready to make your first referral?

If you’re looking for a reliable OT bidet recommendation in Australia, we’d welcome the chance to support your caseload. Download our Remote Evaluation Checklist, submit a quote request through our medical and disability solutions page, and we’ll take it from there.

Frequently asked questions

Will a bidet seat fit any toilet?

Most standard pans are compatible, but seat fit depends on pan shape (round-front vs elongated), overall length, and cistern clearance. That’s exactly what our Remote Evaluation Checklist is designed to capture. Download it, fill in the measurements, and we’ll confirm compatibility before quoting.

What happens if the toilet doesn’t have a power outlet nearby?

Electric bidet seats need a general-purpose outlet (GPO) near the toilet, and extension cords aren’t permitted. If there’s no outlet, a licensed electrician installs one as part of the job. We include this in the quote so there are no surprises. 

Do I need to write a full OT report to recommend a bidet through the NDIS?

For bidet seats under $1,500, the NDIS classifies them as low-cost assistive technology, which means the participant can purchase without a formal assessment or prior approval. That said, a written OT recommendation strengthens the case at plan reviews and is essential if total installed cost (seat, installation, any backflow device) pushes past the $1,500 threshold into Capital AT. For aged care clients under the AT-HM scheme, an OT prescription is always required.

What if my client needs an accessible bathroom that meets AS 1428.1?

No bidet seat on its own is AS 1428.1 compliant; that standard covers the full facility, not individual products. What we do is check the installed combination: whether seat height stays within the 460–480 mm range, luminance contrast is maintained, load rating is sufficient, and grab rail positions still work. We’ll flag any issues before installation so you can make an informed decision.

 

Ready to find the right bidet?

Talk to our Perth team about supply, installation or an NDIS-ready quote.

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