Siphonex help needed

[fotofashion]

I recently bought a siphonex and am happy I did except for one small problem that I know you who use this device can help me with.
What type of nozzle or control to turn on and shut off the mixed water/fertilizer do you use. My difficulty seems to be "back pressure" with the controls I have tried to use. Because of the back pressure the dilution rate does not work. I tried to use my water wand (which I would prefer to use) but that does not work. I bought an inexpensive nozzle that is used for just watering and that did not work either. I also tried using just one of those shutoffs and I am not sure how well it worked either. I kind of get the idea that whatever control I use has to be turned on full blast so that seems to eliminate the nozzle.
Ideas and suggestions from those who have experience please.
Thanks
Beverly A.

[blanco20]

Hello, i also use the siphonex and i use the dramm watering wand with the low pressure water breaker that you can purchase at frostproof gardening supply.Dramm 170 Water Breaker Watering Nozzle-Plastic #170PL - Frostproof Growers Supply .the siphonex will not work with those nozzle that include different water settings.Also some siphon will not work if your hose is longer than 50 feet.

[Ray]

Beverly, you hit it on the nose.

Those are venturi devices, so rely upon a pressure drop from the inlet to the outlet to draw in the concentrate.

Anything that lowers that pressure drop - low flow rate, low water pressure to start with, long-, or small diameter hoses, water breakers, nozzles, etc. - will affect the ability of the venturi to function.

The simplest solution, although probably the least convenient too, is to put the Siphonex at the delivery end of the hose, rather than the supply end. That means, of course, that you pretty much have to carry the bucket of concentrate around with you as you water.

I mostly got around that by 1) installing a longer feed hose from the concentrate to the siphon, 2) running a large diameter hose (minimizing the pressure drop - it was 3/4" ID) from my spigot to a convenient place for centralized watering, 3) Attaching the Siphonex to that, then 4) using a short length of large diameter hose from that to a very unrestrictive watering head, like blanco recommended. (I actually prefer the 400 or 1000 heads, for greater flow with no restriction.

[fotofashion]

Many thanks to you Blanco and Ray. I hope I have my problem solved now, I'll let you know after Friday (the day I fertilize my plants).
Beverly A.