Toilet fill valve on the guest bathroom toilet started constantly running last night just before I went to bed, and after a few quick adjustments and checks turned off the water to fix it this morning. I start taking the top of the valve apart to flush it out, and sure enough that is the culprit, a few pieces of debris stuck at the top of the valve. Of course, it wasn't going to be as simple as pop off the top, pop it back on. Oh no, couldn't be that simple. You see, the fill valve in the toilets are
these pieces of crap, that for some inexplicable reason has a 2-part float that comes apart ridiculously easily. The top part raises a bit from the bottom "cup" triggering it to shut off, and while I was flushing out the valve it floated completely out of the bottom part of the float. This required me to take it completely out of the tank to get it back together and seated properly. Way too much work for what should be a really simple fix. There was lots of cursing, of course.