[bkgma]

If it sprayed, before, and if water comes out with no resistance from the head, but no water comes out with the resistance/pressure a head provides, and you changed the head, perhaps there is a leak underneath that doesn’t show when there is no resistance, but when you add pressure on the line with a head the water diverts to the leak point. I would dig around the pop up so you can see the joints- or at least see if the hole fills up with water with a head on.