This is my first year with Welsh Harlequin ducks and Geese. I have had muscovies for several years which quite honestly are VERY similar to chickens in their care. The only thing I changed with my muscovies was to put the chicken waterer (which is just a short rubbermaid bin) behind a cattle panel (so they can't swim in it). That I dump every day, so it doesn't matter if it gets filthy. Honestly, that is the ONLY water chore 100% necessary when you raise muscovies. They don't need water to breed. It is ideal if they can wash up but small amounts of water are perfeclty adequate, even with rather large numbers of birds.
For the winter I have little cement mixing bins that I offer for them to wash in. They can get clean but they're still easy to dump. They don't need to breed this time of year so I don't care if it's big enough for that. They are big enough for a pair of geese to splash around in, though. Up till this year, we have used them all year round for our muscovies. This year are numbers are much higher and we have geese/welsh harlequin ducks so we're putting in a pond that we wanted for irrigation purposes anyways.
We plan on putting in a new pond this year for them, which will have a pump in it which we will use to water the garden - not to filter it. We WANT that water to be rendered FILTHY by the ducks, to benefit our garden.
It will be a fairly large pond, however, so it shouldn't become a cesspool or anything.
I would not EVER raise ducks if they didn't free range. They do have liquid poo, and I can't imagine keeping them bedded or in a run. They would have it gross VERY fast. Mine free range 24/7, 365. I haven't lost a bird to predators in close to 8 years now. Luck or prevention from our two large dogs that kill anything not supposed to be here, I don't know.
In my opinion of you want quiet ducks that are easy to raise and need very little water, get muscovies. I never had more than the cement mixing bins for them, and they did just fine. They range well, taste great, can lay well, come in multiple colors, are great mommas, and despite someone saying they get frostbitten - mine at least seem to winter well, too. I've never seen frostbite here in MI, and we've had some brutal weather over the last few years. They really aren't much more work than Chickens and are very enjoyable.
That being said I LOVE my welsh harlequins. I love duck noises. Loudness isn't an issue (we have guineas and geese, too), so we don't mind the quacks.