Inexpensive fertilizer injector for sprinkler system?

I bought a hose bib injector that was pretty cheap, made by EZ-Flo. See them here:

quite a number of distributors, viewable on their Home page.

I didn't say hose bib sweetie, please read it again.

Maybe you should read it again, sweetie. Newsreader even gave you a link.

Well, it does appear from the illustration that the 'in-line' version is for PVC. However, the OP should be open to the likelihood that an adapter (hose bib or PVC or ???)may need to be soldered in place on her copper line to allow most modern plumbing accessories to be connected.

Carl

When I put in my underground system, I looked into doing just that.

While there are easy ways, there are some limitations of which you should be aware -

I fed my two eight-station manifolds with a pair of short pieces of 3/4" hose, put between the the vacuum-breaker-equipped spigot which is fed near the main, and the manifold. .

When I wanted to feed or treat the grass or flowers in the system, I put a Miracle-Gro hose-end sprinker in the hose junction (the flared end of the hose-end feeder screws off and you get a second hose thread). You just empty the packet into the Miracle-Gro bottle, screw it on, and turn on the water and the manifold staion to be watered.

(I rarely use it, however.)

No actually that inline one is for only the side of the valves that goes to the sprinklers, for only one station.

Soldered into the copper pipe coming out of the wall. In other words, would go to all stations, not just on the outside end of one.

I think it COULD be put in front of the 'manifold'(even in front a spigot) but would still need to have an anti-siphon device anyway - so likely some additional component would need to be adapted to the copper anyway. Might be the unnecessarily tricky way to do it. I'm sure it's do-able, but probably will require an NPT fitting to adapt to PVC. Either way, it's probably a job for a plumber.

Carl

The anti-siphon issue is a HUGE consideration if I understand the OP's intentions correctly.

Another thing to be mentioned is how corrosive that water soluble solution is going to be on copper. I know my hose-bib setup causes substantial corrosion on all my garden hose brass quick connects downstream from the injector.

Did you follow the link, "sweetie"?

It would probably be best then, to put the injector at the end of the copper line, going directly into the valve manifold.