Well water versus city water depends on the quality of both and in most cases is six of one, half dozen of another. As far as emitters, high flow emitters generally will result in the water not watering evenly as it just runs through the pot. A couple solutions are use lower flow emitters for a longer time period or use emitters that disperse water over a greater area such as the misters or mini sprinklers (inverted types). Another solution is to add more drip type emitters (of lower flow). Example, a 1gph emitter delivers the flow you want, but not the coverage. Use 2 1/2 gph emitters. It does take some experimentation to get things dialed in the way you want. For larger pots you might prefer the drip hoses with emitters prebuilt in with 6" spacing. Wrap them around the pot to get a more even dispersal of water. Also keep in mind that just because the surface isn't evenly wet this doesn't mean a couple inches below the surface the same is true. The water tends to fan out horizontally as it goes downward.

Take a infilter out of it's casing, roll up some shade cloth in a 30 mm long cylinder the diameter of the casing and put in one end. In the other end you put in your fertiliser and screw the end on. If the fert is to strong put a T piece in before and after the casing. Join some hose to the T pieces with a tape in the middle to regulate the water to dilute the fert to the required strength.

Ewww, thanks for the tip, because that is exactly what I was going to try, bathroom silicone. Although I'm starting to see a workaround. The tubing kit came with connectors that attach to a hose, which I was having a hard time figuring out how to use at first. But the spout fits almost snugly into the tip that is made to attach to the tubing. Since I have a version that connects to the end of a hose and caps it, and a version that connects to both a hose and the tubing, I find that both these parts attach to each other. So I can connect the spout to the end cap version, unscrew the cap, connect that to the hose/tube connector, and attach the tube. This probably doesn't make all that much sense without pics, though, huh? I'll try and put some up once my brain is less tired. The thing that would make this perfect is if the spout could attach just a smidge more snugly without requiring silicone. This way, when it is time to refill, I can turn off the spout, detach the connector so that the whole assembly can remain in place, and just take the container down for refilling. Maybe I will take the spout and the connector to the hardware store to see if I can find a bit of tubing that can serve as an intermediary, as the connector is designed to lock over tubing to be secure. Right now the spout fits within the connector, not over the connector, and therefore cannot be locked into place. Or see if I still have a spare hose clamp around somewhere. I know I got some to repair a dishwasher leak, I just don't know if I got extras. Thanks for the ideas. One of these is bound to work!

Aeroflo or other diy aeroponics systems use just hydroton suspended in net pots in the air in a system exactly like you describe except instead of drip emitter, you drill a hole in the side or top and slide the drip line into the bucket and attach a cloning mister. I just built a system using this technique and it's working great. Some people either leave the pump running 24/7 - or on all day and 1 time in the middle of night - or 1 min on 5 min off continuously. at the left bottom of this pic, you can see an Aeroflo system Im using. Im also building some that are in 5 gal buckets as well for my peppers.