What TOTO Makes, and How the Range Fits Together
Four product types account for nearly everything in this collection. Which one you want depends on how much of your bathroom you are willing to replace.
WASHLET bidet seats
TOTO describes the WASHLET as its award-winning bidet seat, and says it fits most toilets sold in North America. The seat takes the place of the one on your current toilet and taps the fill line already behind it. A wand extends with AIR-IN WONDER-WAVE technology, providing a soothing warm flow of aerated water, and it self-cleans with EWATER+ inside and out before and after each use. Higher models add a warm air dryer, a deodorizer, and a lid that opens on approach. The lineup runs S1, S2, S5, S7 and S7A, plus the slim K-series and the tank-heated A2 and KC2. All of them sit together in TOTO WASHLET bidet seats.
WASHLET+ toilet and seat sets
WASHLET+ is TOTO's integrated high-performance toilet and WASHLET bidet seat, built as a set with no protruding pipes or cords. The supply line and the power cord route behind the bowl instead of showing against the wall. Many products in this collection are these sets: a Drake, Nexus, Aquia IV, UltraMax II, Legato or Carlyle II bowl matched with an S2, S5, S7 or S7A seat. They are grouped in TOTO WASHLET+ toilet sets.
Toilets on their own
Not every TOTO here washes you. The same bowls are sold without a seat in one-piece, two-piece and wall-hung form, and they carry the flush and ceramic technologies either way. TORNADO FLUSH uses a hole-free rim with dual nozzles to create a centrifugal rinsing action that cleans the bowl more efficiently, and CEFIONTECT glaze creates an extraordinarily smooth surface that helps keep the bowl cleaner longer. Start in TOTO toilets if the bidet seat is a later project.
NEOREST and integrated smart toilets
NEOREST is the top of TOTO's range, with the washing system engineered into the fixture rather than bolted on top. The NX1, NX2, RS, AS and LS are dual flush at 1.0 or 0.8 gallons per flush; the WX1 and WX2 hang from an in-wall carrier. ACTILIGHT keeps the bowl clean using no chemicals, just light, oxygen and water, and auto flush means there is no button or handle to touch. The full line is in the NEOREST range.
How to Choose Between a WASHLET, a WASHLET+ Set, and a NEOREST
Decide what you are replacing first. Then confirm the measurements that decide whether the thing you picked will actually fit your bathroom.
1. Choose the seat, the set, or the fixture
A WASHLET seat is the smallest change: your bowl stays, your plumbing stays, and you keep the option of taking the seat with you. A WASHLET+ set replaces the toilet as well, so the hoses disappear and the seat is matched to the bowl at the factory. A NEOREST or another TOTO smart toilet goes further again, putting the wash, the flush, the glaze and the lid in one body. Cost and installation work rise in that same order.
2. Buying a seat? Measure the bowl
An elongated bowl measures about 18.5 inches from the seat bolts to the front rim, and a round bowl about 16.5 inches. The two bolt centers should sit about 5-1/2 inches apart. TOTO also asks for clearance between the front of the tank and the mounting holes, and warns that a French-curve toilet may prevent WASHLET installation. Then shop elongated bidet seats or round bidet seats.
3. Buying a toilet? Measure the rough-in
Rough-in is the distance from the finished wall to the center of the closet bolts. Twelve inches is the standard size, and 10-inch and 14-inch drains exist, so measure yours rather than assuming. Shape and height come next: elongated is roomier, round saves floor depth, and TOTO's Universal Height models sit taller than standard height.
4. Confirm the outlet
Every WASHLET needs power. TOTO asks for a GFCI outlet within three feet of the toilet, and if you do not have one, the trade you need is an electrician rather than a plumber. The seat itself is a straightforward job: shut off the supply, fit the T-valve on the fill line, mount the seat, and plug it in. A bidet installation walkthrough puts a typical seat at 30 to 60 minutes.
5. Pick the WASHLET tier
The S7A sits at the top and is the only WASHLET with an automatic open and close lid. It and the S7 add auto flush capability and EWATER+ on the wand and bowl. The S2, S5, S7 and slim KS6 heat water instantly and include the dryer, the deodorizer and a night light. The S1 covers the wash without those extras, and the A2 and KC2 store warm water in a tank.
6. Buy from an authorized retailer
TOTO states that its warranty applies only to products purchased from an authorized TOTO seller in the United States, and that it reserves the right to reject claims on units bought from unauthorized sellers. Coverage runs one year on most toilets and WASHLET models, two years on the S7 and S7A, and three years on NEOREST. Bidets USA is a verified authorized TOTO retailer.
What Are Common Problems With TOTO Toilets?
The common problems people report with a TOTO are usually plumbing or upkeep issues rather than the fixture itself, and TOTO's own troubleshooting says the same. A bowl that fills and drains slowly points at a clogged sewer or vent line: pour a large bucket of water in quickly, and if the vent is clear the water leaves as fast as you can pour it. A toilet that keeps running is one of four parts — flapper, flush valve, fill valve or trip lever. Mark the water level, leave it overnight, and if the level has not dropped, the flapper is the part to replace.
Cleaning accounts for most of the rest. CEFIONTECT glaze wants a non-abrasive cleaner and a soft-bristled plastic brush; gritty powders, metal scrub brushes and steel wool damage the surface, and hard water stains need a slightly acidic cleaner such as vinegar or a lime-dissolving cleaner. On a bidet seat, odor is almost always the deodorizer filter, which cleans with a dry toothbrush. Keeping a TOTO WASHLET seat right means monthly wand and filter cleaning, a new deodorizer cartridge about every six months, and draining the water filter valve twice a year.