top drip pouring on rockwool stuffed with seeds

[chopficaro]

I've just set up a top drip system, but I am worried. It's not dripping, its pouring. It's only a 30w pump pushing water through a thin tube with a smaller nozzle at the tip, so its a small gentle type of pouring, but I was just looking online at other people's top drip systems and they have it dripping 1 drop every 2 seconds! Like I said the stream is gentle but it covers the entire surface of the 1 inch rock wool cube. I have the seeds stuffed in there about 1/3 inch deep but it's been a few days and no sprouts. Did I drown my seeds?