Should all of the resin beads be purple?

Document ID

Document ID TE1164

Version

Version 2.0

Status

Status Published

Published Date

Published Date 27/05/2017
Question
Should all of the resin beads be purple?
Summary
Half of the resin beads are normally yellow and half are purple.
Answer
Half the resin beads are normally yellow and half are purple. The purple beads contain an indicator that changes to yellow when the resin is saturated. The yellow beads work the same but do not change color when saturated. When all of the beads are yellow, discard them and replace with fresh resin.