PrimoChill SysPrep™ – Cooling Loop Pre-Treatment


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Primochill Sys Prep™ was created to address the immense customer requests for a clean and well maintained cooling system. Any successful venture into water-cooling starts with a true cooling loop preparation which can only be achieved by using Sys Prep™.

It will "flush" your loop and its components of any debris left by the manufacturing processes of your reservoir, block, pump, or radiator, leaving your water cooling loop clean, clear, pristine and ready for any type of coolant.

Let Primochill Sys Prep™ take the confusion out of what is causing the filth and let it "flush" and "prep" your next cooling loop. Over the last decade, PrimoChill has strived to provide the water-cooing community quality products that inspire our customers. Get clean and protect your investment with PrimoChill Sys Prep™.



  • Water Based.
  • Environmentally responsible food safe NON-TOXIC biodegradable product-good for you, good for your PC, and good for the planet.
  • Pre-Mixed. Just add to a gallon of water and get flushing.
  • Safe on all plastics, rubbers, and miscellaneous gasket materials, including Acrylic. 
  • Non filming system cleanser.


  • Bottle Size: 15ml 
  • Shelf Life: 2 Years, Unopened 

Mixing Instructions:
  1. Install your cooling loop and double-check connections to insure loop is “closed”. No Leaks!
  2. Empty bottle of SysPrep into 1 US Gallon of fresh DI or Distilled water, and shake for 30 seconds
  3. Add mix to cooling loop.
  4. Fill loop with treated water and be sure to remove as many air bubbles as possible.
  5. Start loop pump and begin circulating the treated water.
  6. Run treated water for at least 12 hours to insure loop is properly flushed and treated.
  7. Drain System. Inspect drained water for debris or foreign particles. Dispose of drained water. Repeat flush if needed.
  8. Fill loop with your choice of coolant and begin water-cooling.**
Notes: During the “flush” the water may become cloudy and foaming may occur. Do not worry! This means the SysPrep is doing its job! If after “flushing” the loop debris is still present, please repeat “flush” again.

** Residual treated water left in your loop is not harmful. If you prefer to remove it, do a simple rinse of the loop with fresh DI or Distilled Water. This rinse will not affect the results of the Sys Prep just performed..