R L S 14 Report post Posted March 29, 2005 Ok This is how I think it works. Please correct me if'n I am wrong. You hook up your adjustable down stream injector which uses the venturi effect to suck up chems and adjust as nesecary this much I know but, Do you put the Metering Valve in between the chem filter and your down stream injector to fine tune the ratio because just the injector itself isnt that accurate or, Do you use the down stream injector OR the metering valve by itself because the metering valve creates the venturi effect as well? Richard Share this post Link to post Share on other sites
One Tough Pressure 580 Report post Posted March 29, 2005 I have a metering valve for my upstream only. My downstreamer has a built in adjuster that is between the injector body and the chem barb. Share this post Link to post Share on other sites
