At a total cost (including shipping) of $7.15/10, this is cheaper than the garden center emitters I have been trying.

I have a pump with a 4Â head that I could use for this type of adaptor. The pump outlet is faced up so I want to face the spray upwards in a vertical system. Would there be any problems with this adaptor in a vertical system? I will be placing herbs in it, so there should not be a great root mass.

Nope, it sprays up. Mine spray hoirizontal.

I don't really know the geometric limit of the spray, so you should test it with your pump.

Mine spray about 0.2 gpm/emitter and I don't know how well they will handle 4 gpm/emitter if I understand your post correctly.

Thanks, you answered my question. I will try it & see how it works.

if you plan to spray directly from the pump, what about making a styrofoam raft that the pump floats on the top of the nutes and as the water level increases or decreases the pump or specfically the sprayer will remain above the waterline?

bluetruck99, that is an interesting idea. If I understand you right, that would create a float device mechanism without a float. Would that hurt the average pump if it was pumping for intervals without water? I would think if you were using a system without a media, such as an aeroponic or NFT system, it would be constantly submerging in the nutrient tank & not likely to overheat.

I havenÂt got back yet about what I think of the part because I am still waiting on it. It should be in any day now.