pH7X powder kills 99.9% of two of the main causes of beer spoilage: Lactobacillus brevis and Saccharomyces cervisiae, if left in the beer lines overnight, (for at least six hours)
Using pH7X Powder
Static Beer Line Example (1% solution)
Clear beer lines with water prior to cleaning lines with pH7X. Using a 13 gallon (50 liter) vessel. Add 7 gallons (25 liters) of warm to hot water (100-140 degrees Fahrenheit) into a cleaning keg/vessel, then add 250g of pH7X powder stirring continuously until completely dissolved. Add another 250g, stirring continuously, while topping off the 13 gallon (50 liter) vessel with warm to hot water for a 1% pH7X solution. Pull solution into lines, and leave for at least 20 minutes for a quick clean. Flush through with clean water as normal. Pour yourself a beer and taste the difference!
The powder can also be used as a deep soak clean by mixing as above and leaving in the lines for at least two hours. It is perfectly safe to leave overnight or up to 24 hours.