Much as I like living at anchor, occasionally I have a bug problem. Not inside, as I have good screens, but outside. They can coat everything.
They seem to have an incredibly short life span. Swarming in the evening, dead in the morning.
So this spring I brought a 1/2 hp utility pump aboard. Just got finished washing down the outside, and it works fine. Hang it over the side and use a garden hose. The pressure is adequate, a little low on the flybridge, but generally a good solution.
I could also use this as an emergency pump if I started taking on a lot of water. I’m happy with this arrangement.