Quote Originally Posted by MrToad View Post
I've been toying with the idea of a flow meter for months.

However, what puts me off every time is the restriction.

The ones that are within my budget that I can source, in the predicted flow rates (2 - 2.2 GPM) range from .33 to .7 bar pressure drop, depending on model and choice of fittings.

That's the same restriction as adding an extra Apogee GTX (best case scenario) or an extra Stealth (worst case scenario) just for the sake of measuring flow.

And that's forgetting about using a filter, which should be used unless you are extremely confident about the cleanliness of your loop. If you add a filter, you'd rather shoot your own foot

Not an easy choice.
Agreed. While this is a very nice implementation of a flow meter, I really don't see the need.

I had a Remag flow meter in my last build and I found the benefits to be negligable. Flow never changed - so why monitor it?... Of course if you are gaurding against pump failure, it can be an option, but there are numerous work-arounds that don't involve impacting flow.

If anyone is really curious about their flow rate they should just do the bucket test or use the flow rate estimator spreadsheet.

Maybe in some rare cases, it's worth it, but for the average water cooler, a flow meter does more harm than good.

-Chris