Folks often ask what kind of glycol or how much glycol they need for their new Ss Glycol Chillers.
You can achieve the best mix with 35% glycol, 65% distilled water. The easiest way to confirm these numbers is by checking it with a refractometer to 24.75 brix. You will want to use 100% ( or 99.99%) food-grade propylene glycol. I bought from "Froggie's Fog" on Amazon but you can also pick up from local draft supply stores.
The 1/5HP Chiller has about a 4.5-gallon reservoir. That comes to about 3 gallons of distilled water and 1.5 gals of glycol.
The 3/8HP Chiller has about a 10-gallon reservoir. That comes to about 6.5 gallons of distilled water and 3.5 gals of glycol
The 3/4HP chiller has about a 22-gallon Reservoir. That comes to about 14.3 gallons of distilled water and 7.7 gals of glycol.
We recommend using the remaining glycol to premix a top off fluid in case of any spills.