headlamp washer leaking

[neckarsulm]

Have fitted my new pump and no leaks from bottle area but the offside headight washer continues to weep water after it's been used until the bottle has run out.
Any idea apart from replace the jet?

I know it's water pressure that lifts the jet out of the bumper, just wondering what stops the water coming out due to the syphon effect of the nozzle being lower than the top of the bottle, is there a valve somewhere?

[neckarsulm]

update - took it off, blew threw it a few times, connected it directly to the join the normally connects to the bumper pipe and it seemed OK. Put it all back together and no more leaks.
Hopefully that's one I can now cross off the list.
BTW when I fitted thew new pump I ran some genuine silicone sealer (left over from cam cover gaskets) around its connection to the reservoir to be doubly sure it would seal.