When your UV lamp is replaced it is recommended that the quartz sleeve that holds the lamp is removed and cleaned and the seals on this are replaced. So for those who are not sure of the setup here a brief explanation is as follows. There is a stainless steel chamber on most UV systems. Within this chamber which is either horizontal or vertical in a system contains a quartz sleeve which runs the length of the chamber internally. The quartz sleeve is a test tube, sealed at one end and open at the other.

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