If your milk line’s got a layer of fat or biofilm sticking around, a rinse and a prayer won’t cut it. You need to properly flush, scrub and sanitise that line so it’s clean from end to end. A dirty milk line is one of the fastest ways to get graded, so don’t let it slide.
What You’ll Need
Agmax Alkali
Agmax Acid
Hot water, starting 85°C
Agmax Vat Cleaner (IF high foam required)
Clean brush on a flexible pipe or sponge-on-a-rope for manual scrubbing, if needed
Gloves and safety gear
Step-by-Step Instructions
1. Pre-rinse the milk line
Flush with cold water to clear milk residue.
Let it fully drain before you start the wash cycle.
2. Prepare your detergent solution
Use Agmax Alkali as directed.
Water temperature should be 85°C to start.
3. Recirculate the solution through the milk line
Let it run for 8 minutes.
Make sure the solution is reaching all areas. Watch for airlocks or poor flow.
If the temp drops below 55°C during the cycle, stop and reheat.
4. Scrub if needed
If the line is long or hasn’t been cleaned properly in a while, run a cleaning sponge or brush on a flexible pipe through it.
Attach a rope to both ends if needed to pull it through.
Don’t skip this if you’ve had a recent grade or you see build-up.
5. Sanitise
Run Agmax Acid wash through the milk line after cleaning.
Recirculate for at least 8 minutes.
6. Cold rinse
Flush with cold compliant fresh water.
Make sure all chemical is removed.
Let the line drain fully before milking.
When to Fully Clean Your Milk Line
After a milk grade, especially coliform or bactoscan
If water temp has been low during previous washes
After a long break between milkings
If you can see or smell residue in the line
Pro Tips
Check for joins, low points, or dips where product can pool
Milk lines should drain fully after each wash. If they don’t, inspect for blockages or sagging
If you’re unsure whether the line is clean, shine a torch through it. If it reflects, it still needs work