Non-C.A.S.S. Technician Fails Dental Practice with Poor Installation of the LibertyBOSS Amalgam Separator

M.A.R.S Bio-Med Technical Specialist Jason Buyukozer shows you the poor installation of a LibertyBOSS Amalgam Separator, and shows you the issues the dental practice faced because of it.

This blog is about a member of M.A.R.S Family who moved their office and did not have their LibertyBOSS installed by a Certified Amalgam Separator Specialist. According to the Doctor, the move was done by a non-Certified Amalgam Separator Specialist and the installation of the LibertyBOSS was either done by a standard Technician or by a plumber hired by the non-Certified Amalgam Separator Specialist.

When the office had their LibertyBOSS due for changing for the first time since the move, the Doctor had to show the M.A.R.S Technical Specialist the location of the mechanical room. A hygienist was still working at the time, so the suction pump was still running. This is where the Technical Specialist heard an unusual suction noise and brought it to the attention of the Doctor. After a brief search, the location of the sucking noise was found, it was due to a poor installation on the LibertyBOSS.

Poor installation of the LibertyBOSS Amalgam Separator

Below is a description of the issues and solutions for this office.

Suction Noise Due to Poor Installation

Issue

In the video, you can see how easily the inlet hose from the operatory disconnected from the rubber coupler. Whoever did the installation of the LibertyBOSS neglected to use the correct parts for the installation, as well as correctly secure all connections. It appears instead of removing the union that was used previously in another installation, they tried to reuse the fitting inside the rubber coupler. This is an issue because the union was too long, not allowing the hose to go deep enough into the rubber coupling to get a proper seal.

Solution

There are many possible solutions to this poor installation. As the time was restricted and the poor installation was a surprise, the following was the quickest and best solution that was available at the time.

Cut the portion of the barbed union that is exposed, leaving the rest as something ridged in the flex hose for the hose clamp of the rubber couple to clamp down on. With the extra portion of the union removed, it fit in the rubber coupler better, allowing for an air and water tight connection.

 

Unnecessary 90 degree Elbow

Issue

Once again it appears the Technician took no pride in their work and reused the parts that were from the previous installation. The previous installation was a tight installation, which required a 90-degree elbow on the inlet and outlet of the LibertyBOSS Amalgam Separator. This is not a large issue, as a 90-degree elbow only causes 6% suction loss. But if there is an opportunity to use as fewer 90-degree elbows, it should be taken advantage of. This Technician didn’t require the elbow on the inlet to the LibertyBOSS Amalgam Separator.

Solution

Remove the 90-degree elbow on the inlet of the LibertyBOSS. There was enough hose to not require the 90-degree elbow.

 

High Inches of Mercury

Issue

Unfortunately, for most Technicians, the solution for poor suction is to increase the power on the suction pump. This is only a Band-Aid fix that causes the pump to work harder than what is required. In this case, the suction loss was due to a poor installation, but in other cases, it could be due to:
– blocked suction lines from little to no use of a good Evacuation Line Cleaner
– neglected amalgam separator – neglected solids collector
– crack in the line

After the installation of the LibertyBOSS was done correctly the suction jumped from roughly 14 inches of mercury to 18 inches of mercury. For a 4 op office such as this office, the 12” of mercury that is recommended by the manufacturer would be sufficient.

Solution

It was suggested to have the Technician reduce the inches of mercury the next time they are servicing the office.

There are many possible solutions to this poor installation. As the time was restricted and the poor installation was a surprise, the following was the quickest and best solution that was available at the time.

Cut the portion of the barbed union that is exposed, leaving the rest as something rigid in the flex hose for the hose clamp of the rubber coupler to clamp down on. With the extra portion of the union removed, it fit in the rubber coupler better, allowing for an air and water tight connection

 

Note Due to time restrictions, the installation was left 100% functioning with a significant improvement in the suction, but it could have been improved greatly.

The inlet from the chairs seems to have two connections that have been combined by a Tee that is attached to two rubber couplings. When this office has their LibertyBOSS due for changing there will be some extra time allotted for correcting this portion of the bad installation. The bottom rubber coupling will be removed, along with the Tee and replaced with a Wye that is hard piped instead of using the rubber couplers. This will remove another 90-degrees in the installation, as well as increase the stability and strength of the inlet to the mechanical room from the chairs.