Looks pretty good. Suggestions: Try to avoid too many single squares, and certainly test them to see if they can be placed logically. Testing really is key - really try hard to make them completely logical. Some of mine have literally gone through hours of testing just to get to place the last few squares properly. (Ignore the first puzzle I made... that was making the usual mistakes of a newbie!) This puzzle is pretty cool in that the majority of it is completely logical yet there aren't many black squares.
Hi guys - thanks for the feedback - yes I did test it and I did change it - I filled in the tap at one stage but that just made the main part easier and did not solve the "drops" problem. Even I had to have 3 goes at getting the drops correct in test mode - which is embarrassing. I'll try to improve. Thanks again.
Anaderol - The nice thing is that you tested it and noted the ambiguity in the description. I think many share my frustration of a puzzle that has ambiguous squares to surprise the puzzler (or worse, when the description says it's fully logical but isn't)!