I might as well bathe in my tanks considering my mucky paws are in them10 times a day :) But like kids getting ill if they are too clean, a little bit of every bacteria is good ;)
Over filling my ATO reservoirs under my tanks is my biggest problem. I could install a float shut off valve by then I lose a gallon or so of capacity. My 50g doesn't evaporate much, but my 240g evaporates close to 5g a day. I may just bite the bullet and install the float valve. Any suggestions on float valve that will not eat up capacity???