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An Independent Engineering Review of Freestanding Jetted Tub Systems
Executive Summary: The Three Core Systems The true value of a freestanding jetted tub relies entirely on the engineering hidden inside the double-walled cavity. Choosing the right setup depends on the bather's specific therapeutic goals, spatial availability, and willingness to follow a proactive maintenance routine. Classic Whirlpool Systems (Water Jets) Primary Benefit: Delivers high-pressure, targeted deep-tissue hydrotherapy. Best For: Bathers seeking intense muscle recovery and localized tension relief in the back, hips, and feet. Key Mechanical Requirement: Requires an elevated pump mounted higher than the suction intake and outlet jets... Read more...
Why SanSiro - Baths of Distinction?
The SanSiro Hydro-Spa: A Masterclass in Freestanding Hydrotherapy SanSiro has redefined the freestanding jetted bath by moving away from generic, mass-produced "parts bin" assembly. As the primary designer and developer of their entire line, SanSiro controls the engineering from the initial mold to the final factory water test. The result is a system that rivals high-end outdoor hot tubs in power while maintaining the elegance of a centerpiece indoor bath. 1. Adaptive Water Massage: The Power of Control Most jetted tubs suffer from "pressure dilution"—the more jets you add, the... Read more...
What is Certified Overflow Testing
Certified Overflow Testing – Peace of Mind Built InWhen integrated overflows were first introduced on contemporary bathtubs several years ago, our on-site inspectors quickly flagged concerns about inconsistent installation quality. While factories performed basic spot checks—typically testing only 10% of tubs—we knew that wasn’t good enough.Despite marked improvements in recent years, occasional leaks still require repairs. We have been performing and continue to implement a full overflow function and seal test, here in the USA, on every single bathtub before it leaves our facility.We also developed U.S.-based repair procedures to... Read more...
What is Dense Foam Insulation
What Is High-Density Foam?High-density foam is a compact, firm foam that offers greater strength, durability, and insulation properties than low-density foam. Because of its tightly packed cells, it provides: Superior thermal insulation — helps keep bath water warmer for longer Enhanced structural support — adds rigidity and durability to the bathtub shells High-density foam is ideal for bathtub cavity walls because it combines comfort with long-lasting performance.Why SanSiro Freestanding Tubs have Dense Foam Insulation Applied At Sansiro, the tubs are designed and built to last a lifeltime. There are two... Read more...
USA Finishing and Inspection
All Jetted Bathtubs—including water, air, and hydro-spa models—are assembled in the USA under controlled conditions. In addition, every tub, including non-jetted soakers, undergoes final surface finishing and quality inspection prior to shipping.Addressing Overflow Integrity and Surface Finishing at the Final StageThrough years of direct import and feedback from professional installers and builders, we identified two recurring quality concerns with modern factory-supplied acrylic bathtubs: inconsistent surface finishing and leak-prone integrated overflow assemblies.While we maintain on-site quality control personnel overseas, we recognize inherent limitations in many factory environments. Assembly-line workers are often... Read more...
What is Water Jetting
Water jetting on a bathtub refers to a system of built-in jets that shoot streams of water into the tub to create a therapeutic, massaging effect. It’s commonly found in whirlpool or spa tubs and is designed to provide targeted relief to sore muscles and enhance relaxation during a bath. Key Components of Water Jetting: Water Jets: These are small nozzles positioned around the interior walls of the bathtub. Common jet placements include the back, hips, and feet. Some jets can be adjusted for direction and speed, allowing you to... Read more...
What is Air Jetting with Water Heater
Independently Controlled In-Line Water Heater with Air Jetting with Ozone Sanitizing Full Hot Tub-Level Heating — True Spa Comfort at Home Elevate your bathing experience with the ultimate in relaxation: a quiet air jetting system paired with an independently controlled in-line water heater that can heat your bath water up to 104°F—just like a professional outdoor hot tub. Enjoy a luxurious, full-body soak with gentle air massage and perfectly maintained warmth, whenever you want it. Why It’s Exceptional Heats water to 104°F Experience true hot tub-level temperatures in the comfort... Read more...
What is Matte Stone Look Exterior
Matte Stone Look Exterior The look of stone resin without the prohibitive weight and handling difficulties NOW AVAILABLE AS AN OPTION ON ALL OF OUR FABULOUS BATHTUBS The Look of Stone Resin—Without the Headaches Stone resin tubs are undeniably beautiful, offering elegant shapes and a premium appearance. But let’s face it—they come with a list of challenges: Common Stone Resin Issues Extremely heavy and difficult to maneuver—even with 3–4 people Often require costly crane assistance for delivery and placement Installation can take more than a day and involve multiple skilled... Read more...
What is an In-line Water Heater
In-Line Water Heater for Jetted Bathtubs What Is an In-Line Water Heater? An in-line water heater is designed to maintain the water temperature in your bathtub during use. Unlike hot tubs, it does not heat cold water to bathing temperature, but rather helps keep your bath warm for longer periods. Will It Heat the Water? Yes—but gradually. The heater only functions when the water jets are running, and over the course of about 30 minutes, it may raise the water temperature by approximately 3-4 degrees. Is It Safe? Absolutely. Most... Read more...
What is Chromotherapy Lighting
Chromotherapy Underwater Lighting What Is a Chromotherapy Underwater Light? A chromotherapy light is a waterproof, color-changing LED light installed on the wall of a bathtub. It’s designed to enhance your bath with soothing mood lighting, offering multiple color options to create a relaxing, spa-like atmosphere. Is Chromotherapy Lighting Safe? Yes—these lights are low-voltage and extremely safe for use in bathtubs. However, some lower-end tubs feature lights that automatically activate with the water pump and cycle through colors continuously. For some users, especially those with light sensitivity, flashing or non-adjustable lights... Read more...
What is Ozone Sanitizing
Ozone Sanitizing in Jetted Bathtubs What Is Ozone Sanitizing? Ozone sanitizing is a highly effective method for keeping jetted bathtubs clean and hygienic. It works by converting oxygen (O₂) into ozone (O₃)—a powerful natural oxidizer that kills mold, mildew, and bacteria inside the air and water lines of the tub. This helps prevent microbial buildup in moist, hard-to-reach areas of the internal plumbing. Is Ozone Sanitizing Safe? Yes—ozone sanitizing is widely regarded as safe when used as recommended in bathtubs. At typical bathing temperatures, ozone naturally reverts back into oxygen... Read more...
What is Hydro-Spa Jetting
Hydro-Spa Jetting The Ultimate Freestanding Spa Experience Hydro-Spa Jetting combines the best of water and air technologies, enhanced with premium spa-grade components to create the ultimate in-bath experience. This advanced system delivers a perfect balance of soothing hydro-massage water pressure and effervescent warmed air bubbles — promoting deep relaxation, rejuvenation, and stress relief. Key Features Powerful Water Jets – Deliver deep, targeted massage to ease muscles and joints. Warmed Air Jetting – Thousands of softly heated bubbles surround your body for a calming, spa-like sensation. Inline Water Heater – Automatically... Read more...
What is Zone Control Water Jetting
Zone Jetting on Water-Jetted Bathtubs Versatile, Powerful Water Massage OptionsAdvanced Hydrotherapy with Precision ControlWater Jetting System Enjoy targeted relaxation with 10 ergonomically placed jets: 4 adjustable back jets 2 hip jets 4 foot jets Each jet offers directional adjustment for personalized comfort. Zone Water Speed & Pressure Control The true engine of deep-tissue hydrotherapy. A simple shift of the Zone Control lever lets you: Instantly adjust speed and intensity for foot and back zones. Double the water pressure to your chosen zone—feet or back—for the most powerful massage jetting available... Read more...
What is Air Jetting
What is Air Jetting? The Complete Guide to Air Jetted Tubs, Benefits, and Maintenance Air jetting is a form of soothing and gentle hydrotherapy often found in tubs and spas. It involves a system where a stream of warm air is blown through flexible tubing by a blower and released into the bathwater through strategically placed jets. This creates a bath filled with a multitude of effervescent, soft bubbles that gently caress the body, stimulating circulation and offering a relaxing sensation rather than an intense, deep-tissue massage. 💨 Key Features... Read more...
Built to Code
What exactly does 'Built to Code' mean?What many retailers don't tell you is that all jetted bathtubs must be built in accordance with CSA, ASME and ANSI engineering and safety codes. Without this, you stand the risk of having your beautiful bathroom renovation rejected by the local building inspector.All of our tubs meet or exceed the following codes; ASME A122.19.7/CSA B45.10 CSA B45.5/IAPMO Z124-2017 ASME A112.18.1-2018/CSA B125.1-18 We use only UL File Listed electrical components Read more...
What is Remote Control
If the remote control batteries require changed, please follow the steps in the video below supplied by the manufacturer.https://youtu.be/P3sHw2A8nscFor air speed control on the 'Air with Chromotherapy' and 'Hydro-Spa' remotes, press and hold the Air Speed button and the speed will oscillate up and down. Read more...
Jetting Sound Suppression
Over the years, we have tried and tested pretty much every blower and water pump on the North American market. It is inevitable these items will create some noise but we chose the quietest USA supplied units we could find.However, we also understand that sounds can resonate inside enclosed spaces and we recognize that additional sound reduction can only enhance the bathing experience.We are currently the only manufacturer to include sound suppression on their bathtubs. This is the same specially formulated foam that is used in professional music studios.Even though... Read more...
Tub Construction
Hotel Collection & LUXWIDE Tub Construction using CoreAcrylOur Hotel Collection range of tubs is built as shown in the above drawing. All tubs are built using CoreAcryl. The inner shell starts off as 3/16" pure high gloss acrylic sheet and is molded into the inner shell shape. Added to the inner shell are three layers of fiberglass with resin. A final aluminum heat shield layer is added to the inner shell. The outer shell process is the same, excluding the aluminum foil barrier. Resin mixed with powdered stone is then... Read more...
CoreAcryl vs. Cast Iron
Heat RetentionCoreAcryl Acrylic Tubs vs Cast Iron TubsAll Hotel Collection and LuxWide soaking tubs produced by Baths of Distinction are made from CoreAcryl. For a full description of what CoreAcryl is, please click here.We are often asked which tubs retain heat better and why. The table below is a comparison test for heat loss between a CoreAcryl acrylic tub and a cast iron tub from a leading manufacturer.We filled both tubs, almost identical in size, with the same amount of hot water direct from the hot water tank at 134... Read more...
Tub Surfaces and Coatings
Baths of Distinction: Artisanal Exterior Finish Options Baths of Distinction offers an expansive range of hand-applied exterior finishes. A vital feature of our specialty applications is the final coating—whether it be high-performance lacquer or natural beeswax—that protects the surface, ensuring longevity and ease of maintenance. 1. Aged Chrome (Dual-Option Finish) This finish utilizes a coating containing approximately 40% nickel particles for an authentic metallic appearance and feel. Original Version: Features a cloudy, dreamlike finish that displays what appears to be natural wear on the surface. It is coated with a... Read more...
How different acrylic tubs are made
HOW DIFFERENT ACRYLIC TUBS ARE MADE By far the largest proportion of acrylic tubs are built using vacuum forming. This constitutes using a mold to form the shell of the tub. Depending on the method of construction, one or two molds will be employed. The forming of the tub shells occur when a heated flat sheet of acrylic is attached over the mold. All of the air is sucked out of the mold and the acrylic sheet takes the shape of the mold. Varying options as noted below are used... Read more...
How cast iron tubs are made
HOW  ARE  CAST  IRON  TUBS  MADE? Cast iron tub production is a relatively inexact science and hasn't really changed that much over the past 150 years.  While acrylic tubs will look almost uniform and perfectly formed, the very nature of molding and enameling cast iron tubs makes any real uniformity impossible. First in the process of production is pouring molten iron into a mold.  When finished and after cooling, the casting will be fairly rough and there is a lot of finishing required to remove sharp ragged edges. After cleaning... Read more...
Choice of Cast Iron or Acrylic
CHOICE  OF  CAST  IRON  OR  ACRYLIC Cast iron is the original and traditional method of clawfoot tub production.  The tubs are very heavy and no two tubs are identical. Acrylic tubs, depending on the method of production, can be as strong as cast iron, consistently finished, more perfect in appearance and relatively light and easy to install. Cast iron tubs are normally two to three times the weight of a good acrylic tub and generally need at least four people to maneuver into position for installation.  Acrylic tubs will need... Read more...
Different types of jetting
WHAT ARE THE DIFFERENT TYPES OF JETTING? The most common types of jetting are; 1. Water Jetting - Re-circulated tub water 2. Air Jetting - The introduction of air bubbles into the bath. Water Jetting Water jetting generally consists of the use of a water pump to suck the water out of the bathtub and push it back through jets under pressure to create a firm or soft water pressure on different parts of the body. There are some options available like adjustable jet direction, jet speed control and heaters... Read more...