I suspect if it's the only supply of water available to them within a reasonable commuting distance from their nest, you're probably not going to be able to stop them from coming to visit the water fountain to drink. I'm guessing your water fountain uses some kind of electric pump to circulate the water so I'd be careful and not put any spray or chemicals in it that would corrode or otherwise cause damage to the pump. To help get rid of the wasp in your immediate area, you might Google 'wasp bate trap'. I seem to recall one that uses a plastic pop bottle and bananas as the bait that supposed to work pretty well (I've never tried this myself).

I can't speak for others but when working in the tomato patch I always had several outfits dedicated to just working with the tomatoes, for the very reason you noted as to staining of clothes. Maybe someone knows some special soap, or chemical, but I just washed my increasing green tinted clothes and watched them get greener and greener as the years passed, and when they were so tatty and green I started with a new set of tomato clothes. Same with sneakers, which I usually wore in the tomato field.So at one time I could have what I called my dress sneakers, then dress sneakers slightly soiled, then usually two pairs of tomato sneakers in case one pair got wet so I'd have a dry pair for the next day. ( smile) Carolyn, who grew a heck of a lot more than just tomatoes, so really should be saying special dedicated gardening clothes and sneakers.

Have you taken the front of the dryer off and vacuumed and used clean water to try and find the source of the problem? Have you checked the vent pipe? Could you have had birds move into the vent pipe while you were waiting for your new dryer? Maybe others here have a solution.

I have tried blow up Allogators, I have an automatic pool cleaner, I have tried Duck off in fact I have tried everything above except for the Solar cover!!! So I am going to give that a go!!! It's horrible having to clean around the pool every second day due to all of the duck droppings!!! Not to mention the health hazard that the ducks faeces causes on humans!!! I have had a double lung transplant so for myself it's a serious concern as it is for all of you!!! These ducks are so arrogant lol they just keep coming in all the time as I live on acreage!!! I have lived out here for 40 yrs and never seen so many ducks before!!! It's crazy!!! It truly is upsetting to see the beautiful pool area spoiled by Duck Poo!!! My dog runs around the outside and that does the trick but only for about an hour!!! So I am going to give the Solar cover a go!!! Thanks for all of the information!!! It's fabulous living in sunny Queensland OZ but it's not so good not being able to use the pool due to the above reason or the health hazard for myself due to the transplant and not having an imbue system!!! So fingers crossed the cover will work!!! again thank you hodes xxx