strange washer jet problems

[muz]

wierd intermittent fault, don't want to take to reno if I can fix myself as knowing sods luck the car will be fine when its down there !

When I am pulling for my washers the back one comes on. When I twist for my back one sometimes they both work and sometimes its the fronts and sometimes the backs

then this morning they were taking turns to work then not work

anyone had the same thing ??

 

[tidyclio]

when i twist the one for the back my front ones squirt although the back wiper is the one turning and the fronts ones dont.mine have been like this for about 2 years if i could be bothered to get the puller to window wipers of to get to the washer bottle and disconnect the pipe then trace it strip of the plastics and spoiler i think i'd find its a blocked pipe!