I got a 26gal tub ($16.99 at TSC) & floating water heater ($19.99 at TSC) because I have quite a few birds ..and a rabbit who also lives with them. Now id like to keep the poop out of the water since the water to my barn keeps freezing. Any ideas on how to keep the ducks from swimming, but allowing them to submerge their bills & heads???. Theres also chickens & a bunny who will be sharing this, so I dont want them to have to drink poop water. Also if there no poop in the water, becuase i add a little bleach it wont need to be changed daily ..lugging 26 gallons to my barn isnt too ez.