How do you check fuel water separation efficiency

[Alan]

When you're topping off your tanks, do you ever think about whether that separator is really doing its job of keeping water out? What quick checks, tools, or nifty tricks do you use to keep your fuel clean and your engines running smoothly?

 

[lifted&gifted]

After I lost a cylinder to water in the fuel one winter, made it a point to do a quick drain test every time. Crack open the bottom petcock, check for any water, and give the bowl a sniff. It only takes a minute, but it keeps my engine running smoothly and my day free of headaches.

 

[lemonoldiron]

One particularly muddy season left me a bit paranoid about separators. Now, I give the gauge a tap, look for any cloudiness, and always keep a small clear cup nearby to catch a sample. A quick glance lets me know if water is trying to sneak through, no hassle, no surprises.

 

[Earthmoverz]

Learned my lesson, a separator can’t just sit there and do nothing. Now, I keep an eye on the sight glass while I’m filling up, give the bowl a knock to check for sediment, and sometimes I even carry a mini water test kit. These small habits lead to big savings for my engine.