Thanks for all your replies and welcomes. When I was researching ducks, the main message that kept coming through was that as long as you cover the basics, it really doesn't matter what your system is as long as it works for you and your ducks.
I'll try to post pics of the set up going forward so you can answer my questions with some better understanding. Here's a little more info for now so you can get a better picture.
* They eat Dumor layer pellets as their main food apart from 10-12 hours of free ranging.
* They share 1-2 cup meals at 8:00 am, noon, mid afternoon and 6:00, then a little snack before they go to bed at 10:00. They have set this schedule on their own by coming up on their deck and letting us know.
* They lay two eggs a day.
* I have tried both straw and fine pine chips in their coop. It seems the chips are much cleaner, the smell is controlled better and I have seen no evidence of any choking or discomfort.
* The coop's floor is un-treated wood decking with half inch spaces which lets soiled, heavy chips fall though to the ground under the deck. After a month of daily additions to the coop, I have a healthy pile of poopy chips to take to the garden from under the deck. I do a deep clean and chip replace once a week including a light bleach scrub and hose down. During the week, I hose down their deck a few times a day.
* I tried the fancy and expensive water feeder device for months. Too many. Now I use a big glass bowl that stays on their deck. I wash it it warm soapy water twice a day. They do love their water bowl.
* Gladys, the avatar, loves to be petted. She'll come up and rub her head on your leg like a cat.
Amelia? Not so much but she will sit with me and Gladys and my cat and dog and eat from my hand.
Thanks again for your replies,
best
randall