Sterisil System G4 – Autoclave & Dental Water System – Complete Build

No, the Sterisil System™ is designed to treat water for the filling of independent bottle reservoirs for dental chair side designs, or can be directly plumbed to dedicated lines to each operatory unit. In addition, the Sterisil System can provide autoclave water (for table top size autoclaves) to dispensing faucets as well as be directed to a drinking water dispenser. The G4 is not designed as a full building/office water treatment system.

The lifespan of G4 cartridges is determined by the incoming source water quality and the volume of water used. Most locations can expect Stages 1, 2 and 3 to last approximately one year. The Stage 4 cartridges may last between 4 to 12 months depending on water quality and usage.

The life of the Sterisil System™ filters and UV light is one year under normal use treating tap water with moderate hardness. If tap water has over 170 ppm TDS hardness or high volume of deionized (DI) water is produced for autoclaves, the DI cartridges may need to be replaced more frequently than once a year. The Sterisil System™ is equipped with automated monitoring to provide notification of this condition.

This issue will occur once the Stage 4 cartridges have been depleted. Ensure the cartridges are promptly replaced when the effluent water quality dictates.

The main water valve does not need to be shut off. All Cartridges are fitted with an automated shut off valve. Simply unscrew the filters, remove and replace with the new filters.

The G4 features built-in alarms to indicate when specific cartridges are ready to be replaced. The “Autoclave Water Quality” indicator will flash red and the G4 will alarm when the lead Stage 4 is ready to be replaced. The “Dental Water Quality” indicator will flash yellow once 90% of the Stage 5’s capacity has been used. The indicator will flash red when you have used 100% of the Stage 5’s capacity.

The G4 requires a minimum incoming source pressure of 65 PSI to function optimally. Inadequate source pressure can result in low water pressure from handpieces and faucets directly plumbed to it. A booster pump is recommended when incoming water pressure is below 65 PSI.

Insufficient handpiece/faucet pressure can be caused by several issues. Most commonly it is the following: Insufficient tank size, Expired tank, Insufficient incoming source pressure, Improper system configuration.

The stream of brine water will reduce from a constant stream to a “pulse” of water as the tanks fill. You should also check the orientation of the permeate pump as this can affect the brine flow. The long arrow should always point toward the ceiling. If your tanks are full and this issue persists, contact Sterisil customer support.

The stream of brine water will reduce from a constant stream to a “pulse” of water as the tanks fill. You should also check the orientation of the permeate pump as this can affect the brine flow. The long arrow should always point toward the ceiling. If your tanks are full and this issue persists, contact Sterisil customer support.

The Reverse Osmosis (RO) Cartridge is rated to produce 50 gallons of purified water per day. To have water ready for on-demand use, water must be stored in tanks. The larger tank stores reverse osmosis water and the smaller tank stores treated dental water. The system will continually fill these tanks as water is used from the system.

The purpose of the tanks is for reserve storage for use no matter what time of day. The reserve tanks can be upgraded in size to accommodate up to 100 dental units per system and are available in 4 gallon, 10 gallon and 14 gallon sizes.

The Reserve tank contains Deionized water for your autoclaves.

It’s reserved for both autoclave water and dental water. The dental water has a second small reserve tank.

No, you only use about 100mls per minute when the water is running. Net water in the larger tank is 10 liters plus 5 liters in the smaller, dedicated dental water tank. The system produces 8 liters per hour.

Yes, The reserve bladder tanks will still operate correctly if set on their side.

A booster pump is recommended when the incoming water pressure is less than 65 PSI, or there is an elevation change between the G4 and the dental operatories/dispensing faucets. For direct feed applications, if the chair furthest from the system is more than 50 feet, a booster pump may be needed to maintain adequate water pressure at the handpiece.

The Pre-Filter reduces the incoming source water’s particulates to improve the water quality entering the G4. A Pre-Filter is not required for it to function, but it is highly recommended with water sources of 250 total dissolved solids parts per million or higher.

Though the water from the Autoclave and Dental lines is not directly harmful, Sterisil does not recommend consumption of water from these faucets.

A shock treatment for units that will be directly plumbed to the system is beneficial prior to installation but not required. Independent bottle reservoir units can be shocked as needed with Citrisil™ tablet shock.

The DI filters have been depleted and require new replacements.

It continually makes water. The power is for the alarms and UV light. The supply water is provided continuously to allow regeneration of water for the reserve tanks.

A Booster Pump is needed when incoming water has less than 65 psi or there is an elevation change between the Sterisil System and the dental operatory units; for example when the system is installed in a basement and the chairs are located on the floor above.

A Pre Filter Kit is recommended when the source water has very high levels of particulates caused by external environmental factors; for example, during nearby construction work or in certain regions of the U.S. or international regions where the water is extremely hard.

Sterisil products are designed to kill HPC bacteria and dissolve biofilm structures over time, not to remove biofilm structure. If biofilm has grown to a point in which dental lines are being clogged, it is suggested that an alternate initial shock treatment, such as Sterilex, is used in order to remove the biofilm structures from the waterline walls.

No, while the dental water from the Sterisil System is EPA registered to produce water below 10 CFU/ml, it is not registered to produce sterile water.

Yes, It is imperative that only water from the chrome faucet is used in the dental operatory. The water from the white faucet is autoclave water and does not have Sterisil’s EPA registered residual disinfectant in it. If autoclave water or any other water that is not from the chrome faucet is used, it will be necessary to re-shock the dental unit with Citrisil Shock at the end of the working day.

No, it is not recommended that you use the dental water from the Sterisil System to wash or rinse your hands with. The Sterisil system can only produce a limited amount of dental water before the final cartridge needs to be replaced. As this cartridge is somewhat expensive, it is not recommended that it be used for activities that require large amounts of water, such as rinsing or washing hands.

Not to worry. Citrisil Shock is simply a concentrated form of the same non-toxic disinfectant used in the Sterisil System. Your patient may complain of a bitter taste to the water, but your patient is completely safe.