PureWash® E590 Elongated bidet toilet seat
The PureWash® E590 offers warm-water cleansing, odor control, a heated seat, UV self-cleaning, but has awkward side controls and weak drying airflow.
Pros
Cons
Key Features
Technical Specifications
| Basic Information | |
| Type | Seat |
| SKU(s) | K-8298 |
| Brand | Kohler Bidets |
| Variant | Biscuit, Elongated |
| Model | PureWash® E590 Elongated bidet toilet seat |
| Product Website | www.kohler.com |
| Installation & Setup | |
| Installation Notes | Requires dedicated electrical GFCI circuit (120 V, 15 A, 60 Hz) Requires connection to toilet water supply line. All hoses and connections are included |
| Electrical & Power | |
| Max Power | - |
| Power Rating | 120 V, 60 Hz, 15 A service |
| Power Consumption | - |
| Power Cord Length | 43 inches (1092 mm) |
| Dimensions & Weights | |
| Seat Dimensions | Overall Width: 17.62 in, Overall Length: 16.19 in, Overall Height: 2.19 in |
| Shipping Dimensions | - |
| Weight Specifications | Overall Height: 56 mm; Overall Length: 411 mm; Overall Width: 448 mm |
| Shipping Weight | - |
| Weight Capacity | - |
| Water & Plumbing | |
| Water Supply Pressure | 20 psi (139 kPa) to 80 psi (551 kPa) |
| Easy Water Strainer Access | no |
| Universal Toilet Compatability | yes |
| Features & Options | |
| Air Dryer | adjustable |
| Seat Shape | Elongated |
| Bidet Towels | not included |
| Automatic Lid and Seat | Automatic |
| Adjustable Water Pressure | Advanced |
| Customizable Nozzle Positions | Advanced |
| Documentation | |
| Warranty | One-Year Limited Warranty |
| Spec Sheet URL | techcomm.kohler.com |
Install and Maintain Manuals
Buy and Price
User Reviews
Owner-installed C3-155 Bidet Toilet Seat
This bidet toilet seat is a great update to our bathroom. The installation of the seat is fast and straight forward and the bidet components work as advertised. The hard part of the installation has nothing to do with the bidet seat, itself. I tried installing a 15-amp outlet next to the toilet by tapping into a receptacle in an adjacent bedroom. This worked but I discovered that the circuit I used also had an exhaust fan and two 320-watt lights that are located in the master bath two rooms away...
This bidet toilet seat is a great update to our bathroom. The installation of the seat is fast and straight forward and the bidet components work as advertised. The hard part of the installation has nothing to do with the bidet seat, itself. I tried installing a 15-amp outlet next to the toilet by tapping into a receptacle in an adjacent bedroom. This worked but I discovered that the circuit I used also had an exhaust fan and two 320-watt lights that are located in the master bath two rooms away. The master bath and the bathroom with the new bidet seat, share three GFI-protected 20-amp outlets. I removed the newly installed cable from the 15-amp circuit and tapped into the GFI load cable (not the GFI line cable), creating a 4th 20-amp GFI protected outlet next to the toilet with the new bidet seat. This 2nd configuration works and the lights in the master bath are no longer blinking. I have a lot of experience with home electrical systems so I felt comfortable adding an outlet next to the toilet in the aforementioned bathroom. I also have experience with water supply connections and had no trouble modifying the water supply connection to the toilet to accommodate the water inlet for the bidet seat. The electrical work took place in the attic over a period of days and the plumbing part took about one hour. The bidet seat installation took about 20 minutes. I think a dedicated 15-amp circuit would have worked fine assuming that no other circuits would be added in the future. If you are adding a new circuit coming from the electrical panel, it would be advisable to add a dedicated 20-amp GFI circuit. With respect to the bidet seat installation, the instructions are slightly misleading where it says to slide the seat towards the attachment bracket. The bracket has a "lip" that the seat must ride over to drop, and then snap, into place. I found that you can slide the seat until there is contact with the bracket and then slightly lift the seat over the lip and use a gentle downward force to snap the seat into place. I also found that while attempting to slide the seat into its bracket, one side would connect but not the other. In this case, the seat was floating above the edge of the toilet bowl on the unconnected side. I thought it best not to try to force the unconnected side into place but to reverse the process and try again. I found that removing the seat for cleaning works exactly as indicated by the instructions.
What a great product ! We have had the KOHLER C3 155 Electric Bidet Seat for about two months now...
What a great product ! We have had the KOHLER C3 155 Electric Bidet Seat for about two months now and we love it. After installing an adjacent GFI plug, the package comes with all new flexible white piping and fittings to connect to a toilet. It has many unexpected features: The seat is automatically kept warm or cool as needed. It's washing and drying functions will only operate when you're sitting on. With the press of a button, a nozzle automatically adjusts as needed to your front and...
What a great product ! We have had the KOHLER C3 155 Electric Bidet Seat for about two months now and we love it. After installing an adjacent GFI plug, the package comes with all new flexible white piping and fittings to connect to a toilet. It has many unexpected features: The seat is automatically kept warm or cool as needed. It's washing and drying functions will only operate when you're sitting on. With the press of a button, a nozzle automatically adjusts as needed to your front and rear. The water is automatically heated or cooled as needed. The stainless steel washing nozzle automatically adjusts to spray or pulsing as desired. When a cycle is completed, the nozzle retracts & automatically cleans itself. When washing is completed, a dryer blows cool or warm air as desired. Toilet paper is no longer needed . When you leave the toilet seat, an automatic deodorizer filters the surroundings. It has a built in blue light that kills bacteria. It turns on automatically when you turn the bathroom lights off. It doubles as a great night lite. Both Kohler and Home Depot had a home run with this product. We love it, BOBM1
Easy to assemble, works great. I really don’t like the nightlight, but you can turn that off. Since it’s a heated seat you gotta keep the rim of your bowl COMPLETELY clean because the heat activates the smell of the slightest tiny fleck of pee. Good excuse to practice better hygiene, I guess. The seat is super comfortable, the contour feels great to sit on. It does look a little funny, because it sticks up so far in the back, but that’s not a surprise. It’s pricey, but very well made and works great. So far the wand keeps itself pretty clean too. Coming from a cheap cold water only biden seat, this is a massive upgrade.
Community Discussions
Product Comparison
How We Test
Trust Built on Data and Diligence
At EveryBidet, we invest significant time and resources in ingesting, organizing, and enhancing product specs and review data to ensure accuracy. Discover our approach.
Summary
PROS
CONS
The PureWash® E590 offers warm-water cleansing, odor control, a heated seat, UV self-cleaning, but has awkward side controls and weak drying airflow.