Hey, I've just scored a 150 gallon pondliner. What is the best way to set it up for my 4 ducks. I have a small urban garden and live iN BC,Canada. Winter is fast approaching. Daily draining of the small tub we have right now isn't working that well. Our soil doesn't drain well and we are close to the water table. I would prefer some kind of pump and filter system and maybe keep it above ground so they can't dabble all the mud in there. Any fairly easy, economical ideas out there?