SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

I think a little more information is needed. After all, typically, spray heads are going to be for watering a lawn, and there isn't a good (i.e. cheap) way to water a lawn with drip irrigation. If however, these spray heads are for flower/shrubery beds, then you've got a couple of options.

The two main keys for drip irrigation is that the water has to have the pressure reduced to around 30 psi and the water needs fine filtration to avoid clogging the small emmitters found in drip irrigation. One way to accomplish this is to go back to the valve and add a filter and pressure regulator just after the valve, then just remove the spray heads and replace them with connections to drip irrigation tubing. The other way to accomplish this is that a conversion kit can be purchased that you insert into the spray-head body. This kit places a filter and regulator inside the spra-head body and provides a threaded connection to use to make a connection to drip tubing. The plus about a kit like this is you don't have to change everything at once, but it will cost more in the end.