ApplianPar 3/4 Inch Garden Irrigation Device Venturi Fertilizer Kit Mixer Injector Switch Dispenser Water Tube Set

This product is complete junk. Zero stars!!! DO NOT waste your money. It does not work and the threaded connections are not true 3/4 inch size and made of soft plastic. Even if you wrap them with teflon tape, the fittings will still leak and easily come off. The Venturi doesn’t even pull the solution out of the container. Find another product..

This is used to connect the water pipe of my garden. Be sure to pay attention to the direction arrow on the main body of the connector. I use it to add liquid chlorine to the swimming pool when I'm out.

I’ve not gotten the 3/4” Venturi to draw in thru its siphon port. Input to the Venturi mixer is a 2.2 gpm water pump that cuts off when the pump’s built in pressure switch detects 70 psi on its exit ( max psi possible input to Venturi ). When I time the flow out of the hose attached to the exit of the Venturi it fills a 2 gallon bucket in one minute. Meaning the pump runs continuously at some pressure below 70 psi. Using the spray wand, its output is about 1gpm and the pump oscillates on and off, meaning the pressure on the system at the low flow rate is 70 psi at the pump exit. Only 1gpm is flowing thru the Venturi & Starting and stopping with the pump. In order for any Venturi to work, water has to flow. As long as it is flowing the siphon port should be sucking. The pressure at the Venturi input needs to be higher than at the suction port and the suction port pressure needs to be higher than the pressure at the exit port. If the Venturi exits to the air then the pressure at the exit is ~14.5 psi. If there is a long hose on the exit, or a narrow diameter hose, the 14.5 psi is at the exit of the hose. If the suction port is open to the air, and the Venturi effect is taking place, then air should mixed with the water, pressure inside the Venturi throat is less than 14.5 psi. The specs on the 3/4” diameter Venturi indicates it exhibits the Venturi effect at flow velocity ranging from 2.86 to10.65 gpm. My pump only puts out 2 gpm when running continuously. Therefore, the 3/4” Venturi should not be expected to siphon very well. The Venturi itself is supposed to work between .7 bar and 9.5 bar which is 10 psi to138psi. It is assumed that 10 psi is above atmosphere. Which implies a minimum pressure drop across the Venturi of 10 psi should cause enough flow for some siphon effect. However, the siphon port has a check valve in it (spring holding a ball) to stop flow from going up the siphon line into you chemical container when flow is stopped. If the siphon effect is not strong enough to over come the spring then the Venturi won’t siphon. It might be I need to use the 1/2” version which has a flow range of 1.28 to 3.56 gpm.

Bought 3 total.. first one works great ( outside of threads not sealing with standard parts) other two do not siphon at all..

Works like a dream as long as you don't have it set up backwards. I adapted with brass fittings so that it's easy to set up with a conventional garden hose.

Summary: This device works quite well, and better than the competing design, as long as you know the specifics. SO, long review that follows summarizes my search for the perfect way to avoid hand-spreading of liquid fertilizer and insecticide. Researching fertilizer suction injector systems, I found three designs: this (call it PVC-type), a smaller plastic or brass device, and a much more expensive tank-based design. The tank based design I haven't tried - but entry level for this is near $100, not for me. It looks quite interesting, and I might try to cobble together something similar someday. The smaller plastic type is designed for garden hoses - it has 3/4" MHT/FHT ends (HT=Hose Thread). This PVC-type is designed for use in PVC water systems. It has 3/4" BSP (British Std. Pipe, also known as "G" type) threads; both ends are male connectors. My WHOLE purpose for these devices is to use with a normal rotary sprinkler to spread insecticide & fertilizer on the lawn I *bought and used* the smaller MHT/FHT type last year. That design has a 1/4" relief hole in its design, part of its backflow "protection". With that design, I had nothing but trouble - it would spew water out the relief hole (drenching me) more often than not. It is extremely sensitive to pressure and flow (too much, it spews; too little wouldn't siphon fertilizer), and to hose type and length. I *never* got it to work with my watering wand. It doesn't work well unless the end has high flow - any restriction, like a sprinkler, or wand, and it doesn't siphon. It needs a wide garden hose. When I used it with quick-disconnect fittings, which reduce the hose (ends) diameter from ~5/8" to 3/8", water flow is focused into the relief hole and the siphon just spews water 90% of the time. I used it all last year, unhappily. Bought a new hose this year, hooked it up and it just won't work at all - nothing but water spew. So, though reviews of PVC-type venturi siphon are decidedly mixed, I noted that (1) the PVC-type is cheaper by 20-40%; (2) most the negative reviews are related to the ends NOT being compatible with garden hoses. For < $20, this design has the venturi mixer, larger siphon hose with a good filter, and a dial flow regulator. So I figured it was worth a try. I worked out the garden hose connections (see below), and hooked it up. It took priming twice (full flow/off; full flow/off) to prime the suction hose. After that, it suctioned from the 5gallon mix of fertilizer/water with NO PROBLEMS AT ALL. I could reduce the flow with the dial regulator; I could turn OFF the water & restart it without repriming. It just worked. Took about 10-15m to suction 2.5g of mix & dispense thru sprinkler. I tried the watering wand - works perfect. I tried the trigger sprayer - it works. The only time it didn't suction was with water OFF for 20m, the siphon hose drained (while I moved things around) - Primed again, working fine. SO, my take: If you want a venturi mixer that WORKS, this is the better design. But you MUST be able to construct your own garden hose connections if you want standard MHT/FHT connections. There are many YT videos on building a rather complicated, dual path piping system around the PVC-type venturi valve. I went MUCH simpler. I just want a straight thru the venturi, but with garden hose MHT/FHT fittings. At each garden hose end, I use quick disconnects. Everything needed can be bought at HD or Lowes for about $10 total. You'll need, for the *simplest* connections: (1) 3/4" MHT x 3/4" Slip fitting [MHT connects to garden hose, the 3/4" slip connect to 3/4 PVC] (1) 3/4" FHT x 3/4" Slip fitting [FHT connects to faucet or hose, 3/4" slip connects to 3/4 PVC] (2) 3/4" Threaded x 3/4" Slip fitting [Standard PVC fitting, it fits the Venturi's BSP threaded ends] (2) 2" lengths of 3/4" PVC pipe [To join the slip fittings] Connect it up & glue it with PVC glue. I'll attach a picture later, but the connection is pretty obvious: [MHT-Slip][2" PVC][Slip-3/4"Thrd][Venturi][3/4"Thrd-Slip][2" PVC][Slip-FHT]

you are 1000% wasting chump change here; does not exploit fluid dynamics properly at all due to cheap soul-less though-less heart-less brain-less market-destroying manufacturing and Сhіոеѕе ⅿаrkеt ⅾսⅿріոց οոⅼу оrⅾеrеⅾ thіѕ оոе bесаսѕе thе brаѕѕ ⅴеrѕіоո іѕ tаkіոց а thοսѕаոⅾ уеаrѕ tо bе ⅾеⅼіⅴеrеⅾ fοr ոо арраrеոt rеаѕоո оthеr thаո реοрⅼе οո hеrе hаⅴе ոο ѕtаոⅾаrⅾѕ аոⅾ аⅿаzоո рսѕhеѕ сhеар ԛսаⅼіtу рrοⅾսсtѕ fіrѕt tο bе ⅾеⅼіⅴеrеⅾ оⅴеrոіցht fοr tο еіցht аⅿ оr еⅴеո ѕаⅿе ⅾау! уеа! іոѕtеаⅾ οf аոуthіոց ԛսаⅼіtу besides user error here in the comments, the plastic is not rigid enough for threading will strip and be worthless in 2 seconds with little force TLDR worthless soft plastic sick of it

Very good product will definitely order again. Thanks