i too use the stove timer, as with my newer (and by newer i mean the "reefing" newer 1 year old) set-up i havnt drilled my glass ro resv., for the float valve but more than once my wife has made cookies or brownies and when she finished we forgot to put it back on.........and my rodi is under my sink and then runs through (in-wall) my bathroom and through the wall which the tank sits on, but when i flood it the water runs down my hardwood floors and then comes out of my downsatirs bathroom duct-work, lets just say that im on my 2nd ceiling now!!!!!!.......oh and my nice 1/32" gaps in my hardwood is now 1/8" and when you run your hand accross the wood you can feel how each piece rises, and drops like a sillyslide at the local carnival, thank god my wife is a saint...........for a month before i fixed the bathroom ceiling my 4 year old daughter wouldnt use that toilette unless someone stood over her cause "that big hole is scary"