how do you get you jet spray to spray lol

ive bought a clio 197 had it few weeks and for some reason when i go to spray screen it sprays the back and the oposite for back.
so i took **** guard off and changed the pipes other way round and now it doesnt spray on the front at all.
Strange.
 
Stupid question but it has to be asked, you pull the stick towards you and it does the back screen? You twist the end and it does the front?
 
ive done that lol.
and now only back works full stop bloody strange.
ive bought a gen water pump for a tenner so when it comes il fit it and see what happends.
 
I'd try taking the washer jets off the pipes and then trying, if its blocked anywhere chances are its the nozzles or filter in the tank and this is the easiest one to check first