Water flow meter??
 

I'm trying to find a flow meter that I could put either before or after a reactor to measure the GPH through the reactor in the range of about 50-200 GPH. It will be on a reactor that I will be turning up and down, so I don't want to do the old fashioned timed water in a bucket method. I can't seem to find anything non-metallic though. Anyone know??

All the meters I've used were metal.

I think Apex is developing one, but not available yet.

http://reefbuilders.com/2015/09/04/n...toring-module/

...and a video: HERE

I have one somewhere around my house that hooks up to a 3/8 John guess pipe all plastic and has a small display. It's runs off batteries.

http://www.flow-meters.ca/blue_white/flowmeters.html

or this one
https://www.gpimeters.com/index.php?...ex&cPath=26_45

They are not cheap but they are made of pvc

Ooo, cool. I may have to buy an Apex one of these days...

Does it look something like this?
http://www.filton.net/251-large_defa...-guest-dso.jpg

I'll check these out, thanks! :)

It's close to that mine looks cheaper but same idea

Thanks, I do know about this one...it has weird sized threads on it. Claynelson bought one of these, and I know he had a heck of a time finding a connector for it. Works well though. I'm looking for a stand-alone flow meter though.