Manco

The Thermaltake Bigwater 745 came with 500ml of coolant, but it was only sufficient to fill up the reservoir to the "low" line. I would like to fill it up to the high line.

Should I just add some distilled water or should I buy another bottle of coolant?

Thermaltake wants $28 for a bottle which seems rediculous. Couldn't I just use car antifreeze?

metalman2785

Distilled water should be fine.

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DrDeville

Distilled water should be fine in the short term, but you might want to put in some additive eventually to make sure you don't have algae or corrosion.

I bought the Swiftech HydrX additive for the same reason, though I haven't used it yet. It's the same radioactive green as the ThermalTake, and only costs about $2 for enough additive for a litre of distilled water.

As I said, I haven't tried it yet. If you do, and mixing the two causes explosions or time travel, please let me know.

Hope this helps.

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