I remember a thread about sprinklers having to be reconfigured. A few people wrote that they attached drip systems to the where the sprinkler head were. One sprinkler served quite a few driplines.
We have a sprinkler system that has all the pipes and sprinkler heads, but I have to attach the hose to the end of it. (we're on a limestone bed) Works great. Last year we had to raise the heads because the plants had grown and were impeding the sprinklers.
