Spry or dripping...

LA was rainning..

So I finaly start to use the wipers and I thought maybe I should test the washers..
and the front was very strong sprying.... but the back is more like dripping..

I asked the dealer during my first oil change..and they told me that it's suppose
to be like that.. is that true? that the back window washer is a dripper?...

sigh..