Lamp Replacement
The blue lamp chambers contain special Ultraviolet Lamps that split oxygen molecules O2
into single molecules O1 to create the disinfecting gas. The useful lamp life is 8,760
hours (one year of continuous operation). After the one year term the light will continue to
shine but it’s ability to split oxygen molecules is degraded so the lamps must be replaced.
Order two new pre-assembled replacement lamps from your FlowMark distributor.
There is no need to remove the blue Lamp hambers.
1. Simply unplug the weatherproof 4-pin connector at the top of each Lamp hamber.
2. Unscrew the Lamps from the hambers. The Lamps were installed hand tight from the
factory but may need a pair of channel lock pliers to remove them after time.
3. The new Lamp threads are pre-wrapped with Teflon tape. Gently insert the new lamp
into the chamber and hand tighten. If pliers are used do not tighten more than 1/8th
of a turn.
4. Reconnect both 4-pin connectors. Push until you feel a click.
Diffuser Maintenance
During each cooling tower maintenance visit be sure to confirm a strong stream of bub-
bles are coming from the diffusers. It is possible the diffuser may need cleaning from
time to time. Submerge the diffusers in Muriatic acid for a few minutes and then rinse
with water.
5
Warning: Do not touch the lamp
glass with your fingers as damage
may occur.
Warning: Do not connect the light
and power the system with the
lamp out of the chamber. UV light
will damage your eyes and skin.
Disconnect and Unscrew Here
