Sparyborg AKA One Eyed Willy....

[Cairnswun]

Remove the nozzle and clean it out.

If one jet is blocked and the other has solution running freely, it indicates a blockage in that one jet or line.

Actually, remove both of them and give the lines a good flush-out.

Make sure there is nothing inside the jets as well before re-assembling.

Hope this helps.