[Tannaton]

It's a common issue, the washer bottle is actually a very complicated multi level tank and depending on the model year there are two or three pumps attached to it. Sorting this is absolutely a DIY job, you don't need to remove the whole bumper, just un-attach the drivers side and peel it back, remove the bottle (there are bolts that go through the middle of it so you need a socket and long extension).

Usually the seals are slimy and the bottle full of gunge so stripping it down, cleaning it with warm soapy water and carefully re-assembling it stops leaks in 90% of cases. Also clean carefully the filters on the pumps.

As said above, if a headlight washer hose has detached and dropped, the fluid will leak out here via gravity - best check that first.

When reassembling check the wiring carefully - if you get it wrong you could reverse the operation of front/rear washers....