Stainless Steel Nozzle Design -- Why It Matters
The Advanced Clean 1000 SpaLet uses a 304-grade stainless steel nozzle wand rather than the ABS plastic used in most bidet seats at this price point. Stainless steel offers two practical advantages: it resists mineral scale adhesion significantly better than plastic, and the surface is less hospitable to bacterial biofilm formation. In hard water areas where plastic nozzles develop white calcium deposits quickly, the stainless nozzle requires notably less frequent manual cleaning. The stainless wand is electropolished to create a smoother surface at the microscopic level, further reducing adhesion. The self-cleaning pre-rinse cycle on the 1000 runs a cold water flush of the nozzle tip before each use cycle and after, helping maintain the nozzle surface condition between manual cleanings.
NSF/ANSI 372 Lead-Free Certification
NSF/ANSI 372 is a standard for "lead-free" plumbing products as defined by the Safe Drinking Water Act amendment -- products must contain less than 0.25 percent lead by weighted average in all wetted components. American Standard Advanced Clean seats are certified by NSF International, meaning every component that contacts the water supply (inlet fittings, solenoid body, nozzle wand, and hose connections) meets this threshold. For households on well water or older plumbing systems where lead contamination is a concern, NSF 372 certification provides a verified assurance that the bidet seat itself does not contribute lead to the water stream.
Pre-Mist Bowl Function -- How It Works
The pre-mist function activates a brief water spray against the toilet bowl interior just before use, creating a thin film of water on the bowl surface. This moisture layer reduces waste adhesion to the bowl -- a practical benefit that reduces cleaning frequency. The pre-mist nozzle on the 1000 series is a separate port from the personal wash nozzle, positioned to spray the bowl rather than the user. The function triggers automatically when the seat occupancy sensor is activated. Pre-mist water volume is approximately 0.1 fluid ounces per activation, negligible in water use terms.
Water Heating and Temperature Consistency
Advanced Clean seats use a tank-based warm water system with a 0.5-liter reservoir that maintains water at the set temperature continuously (in non-ECO mode). In ECO mode, the reservoir heats on demand and may deliver a brief cooler stream at cycle start in cold ambient conditions. The heated seat uses a polyimide film heater embedded in the seat shell -- this type of heater is thinner than wire-resistance heaters, allowing the seat to maintain a slimmer profile. The deodorizer system (1000 series) uses an activated carbon filter and a low-noise fan that draws air continuously during occupancy.