Himifuture G1/2 Garden Irrigation Device Venturi Fertilizer Injector Switch Water Tube Kit

Close to a 5* but not quite right for my intended purpose.This product does work but ...You need a couple of thread adaptors to translate to standard hose clip fittings - happened to have a fewYou need a high flow rate to get it working so not suitable for small scale drip irrigationNeeds ‘priming’ to get it going unless you have very high flow rateWhen using with drip irrigation the fertiliser concentrate ‘bucket’ must be below the height of the lowest drip otherwise a syphon effect will empty your fertiliser concentrate rather quickly at high concentrationThe ‘dilution rate’ adjustment seems a bit vague and somewhat variable with flow rateBox contains zero instructionsAll that said it is still a valuable addition to my automatic drip irrigation system (75 drippers) with the only insurmountable problem being the syphon effect mentioned above as my lowest drippers are only 150mm above ground level. If the seller can solve my ‘syphon’ problem without me having to switch dial off or remove intake from concentrate reservoir I’d happily change rating to 5*.

Delivered quickly, thanks ! However, if you plan to use it for your lawn with a lawn sprinkler it doesn't work at all as it almost requires the full water flow for the venturi to work. I tried to help with gravity by lifting the bottle of fertiliser 6ft high and even tried to push the liquid into the tube to empty it with compressed air, nothing works. When you shut the water, the bottle of fertiliser empties in seconds if you forget to turn the fertiliser tap off. Badly designed venturi. (before I'm asked, yes I installed it in the right direction following the arrow)

Bought the 1/4 inch one before which was fine but wanted the 1/2 inch as well for speedy induction of fluid although 1/2 inch needs a lot more than 15mm hose to pick up fluid.