I live in Texas with an army of dogs, most of which enjoy water. I decided this year to get away from the shallow, flimsy Walmart wading pools and finally give my dogs some water they can get into. For most readers, this is still small, but for me, I started with a molded (preformed) shell from the local building supply. I think it is about 115 gallons or so. I have set it into a deck which kept me from having to DIG (boo, bad) and as it has no drain (as yet), it also allows me to siphon the water out (for now) and clean it. I am trying now to find a way to 1) fit a drain without ruining it, and 2) set up some sort of filtering and pumping system to help keep the mosquitoes and trash (and dirt) down. I cannot simply put in a submersible pump or anything that the dogs can get to, else it will end up a toy for them. I have an idea of how to get around this, but need some insight and help deciding how to know what size pipe/drain I would need, and some good information about pumps and filters. Where better than a forum of this nature, where others have already done what I am hoping to do? No need to reinvent the wheel. So, thank you all for being here to help other newbies like me.:regular_waving_emot