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SysPrep: conditioning a new loop before final coolant

6 steps · 48 hr·Beginner-safe·Updated Aug 2026

SysPrep conditions a brand-new loop before its first real fill. It neutralizes pH, dislodges the debris every fresh build sheds off machining and assembly, and gets every wetted surface ready for the coolant that follows. This assumes the loop is already leak-tested and, if the radiators are new, already flushed with Rad Clean — SysPrep is not a substitute for either.

Liability

PrimoChill is not liable for hardware damage incurred during the cleaning process; use at your own risk.

Steps
You'll need
SysPrep · 1 bottle
Fresh DI or distilled water · 2 gallons (1 to mix, 1+ for flushing)
External mixing container, 1 gallon capacity
Drain valve (recommended)
PSU jumper or external pump supply
SysPrep: conditioning a new loop before final coolant
Step 01 of 6

Confirm the loop is leak-free first

SysPrep runs for two full days — pressure-test or run a paper-towel leak test before you mix anything. See the leak-testing guide if you have not done this yet.

Why this matters

A slow weep that is invisible in a 20-minute bench check can put real volume on a component over 48 hours of continuous circulation.

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