Updated: Aug 14, 2020
It varies depending on make/model but as a rough guide 5-10
minutes should be enough time to properly flush your motors.
There's no harm in flushing them for longer so if you're unsure you can always keep it going for another five minutes. But once it's done it's a waste of time and water, so you want to try and work out the perfect length of time for your motor in the long run.
YOU MIGHT ALSO LIKE:
Do you have a question you want answered? Feel free to submit it via the form below and I'll answer it in depth for you.
Feel free to get in touch via (03) 4216 5411 with any service enquiries.