How do I take a pooled sample?

Step 1: Determine the number of active waterlines on your dental unit that you will sample.

Step 2: Based on the number of waterlines, sample an even amount of water from each device into your testing vial. For example, if you have 4 waterlines, fill the vial with 4 equal parts from each waterline (or ¼ of the vial for each waterline).  It’s also important to make sure each of the waterlines you are sampling are coming from the same water bottle.

Step 3: Repeat the previous steps for each vial until you have tested all of your desired operatories.

Note: Do not combine a sample from source water with samples from dental units/devices. Always test source water separately. 

“Pooling” your water samples is a cost-effective way to test the dental unit water coming from your unit. You can find more information about this at How to collect a pooled sample.