Luis, is the larger tubing soft enough that you can punch a hole in it? If so, then that is what you do. Punch a hole in that and then you put a 1/4" connector into that hole. On the other end of the 1/4" connector, you put 1/4" tubing, then your dripper on the end of the tubing. The drippers have a barbed fitting on them so they won't come out. Here is a link on a "how to", look on page 19. Depending how large the pots are, you may have to use several drippers, or get some kind of a mister for pots. I hope this is what you are looking for and I am not just babbling! Here is a link that might be useful: How to

Its like any other kind of watering - the plants may not need as much early on, more later as it gets hotter and they get bigger, it depends if you put down a mulch, etc. The same principal of deep, more infrequent watering holds true as well, so you get the best root growth. I can't think of any veggie that doesn't like it.

How far apart are the hoses? Also, you have to dig your hand into the mix to see if the water is fanning out as it goes down, or if it is mostly dropping straight down. It is entirely normal for the surface to remain dry except for an inch or so on either side of the hose. What your mix is comprised of makes a difference as well. If you are using Mel's mix you may need to up the percentage of compost to get the moisture to wick into the drier areas well. The peat, once dry, won't wick the moisture to itself. It has to be at least damp before it will do any wicking. Using a light mulch also helps as the water will kind of circulate a bit from evaporation under the mulch and provide a more even moisture level. In any case I don't think you will get away with anything over 12" spacing with those soaker hoses (I have the same soakers). Anything over 6" spacing between the hoses and unless you use a moisture trapping mulch you won't get the entire surface moist, but the water should fan out enough as it drops that 3" down everything is watered. If this isn't the case either move the soakers closer together or increase the amount of compost in the mix.

I use the irrigation drip and love it. From time to time a dripper will get clogged, all you have to do is take it off and let the water rush through the opening and then put it back on. I have learned the hard way not to use any of the spray nozzels, just go with the 1 gallon per hour pressure compensating drippers. I wouldn't actually use a kit, just get the 1/2" main line tubing, the 1/8" tubing that reaches to each individual shrub, and the 1/8" soaker tubing for perennials. Then get enough 1 gallon PC drippers to reach all of the shrubs and you are set. I've got them everywhere, the oldest set is 4 years old and still working. The most used ones are in the rose gardens, one is 3 years old, the other is 1 year old. I turn them on once a week for a few hours or so during the heat of the summer. The roses love it. Many other shrubs don't need that much water. The only big problem I've had is that every once and a while some critter will knaw on the 1/2" line trying to get to the moisture. This results in a fine mist being shot out of the line every time the water is turned on. It's easily fixable, just cut the line and take out the knawed part and put a 1/2" connector in to connect the hose. M