Technical Clarification Regarding UV Restriction – Eisbecher Aurora D5 Acetal/Glass - 250mm

[gAk81]

Dear Alphacool Support Team,

I recently purchased the Eisbecher Aurora D5 Acetal/Glass – 250 mm with VPP Apex reservoir/pump combo.

In the documentation, you recommend using only clear coolants from your own production (CKC, Tec Protect, Eiswasser Crystal – no UV), or pure distilled/osmosis water.
I would like to better understand the technical reasoning behind this restriction, particularly in relation to Alphacool’s own UV-reactive coolant.

Specifically, I am referring to Alphacool Eiswasser Crystal Green UV (I've already bought from your store), which is an official Alphacool premixed coolant designed for PC water-cooling systems.

Could you please clarify whether the “no UV” recommendation is based on:

• Long-term interaction with acetal components in the pump top or housing,
• Effects on O-rings or pump internals,
• Potential dye separation or residue formation over extended use,
• Interaction with UV lighting (photodegradation),
• Or primarily a warranty and liability policy, even when using Alphacool-branded UV coolant?

Since the Eisbecher Aurora uses a glass reservoir tube rather than acrylic, I would also appreciate confirmation on whether this recommendation is independent of the reservoir material and instead related to other internal components.