rainy day

The raindrops are the hardest part of this. takes a lot of logic.

Ok I've been absent for quite a while so have only just seen that some are having difficulty with this...

Raindrop starting points are:
C2: r12r18, c4:r12r22, c6:r15, c7:r19, c8:r12r22, c9:r14, c12:r12, c15:r12, c17:r12, c18:r14, c20:r20, c21:r14r19, c22:r12, c23:r17, c24:r17r22 and c25:r17
Hope this helps x.

Thanks for the help!
There are 2 mistakes in your list:
c20:r21 and c24:r13.

Thank you, Nanallac and Gerti, for the hints.

Thanks for all the hints.

Multiple possible solutions. Thank you for the hints.

Thank you.