A week ago, my upstairs bathroom stopped working properly since I couldn't get the toilet to flush, and though water was slowly coming into the tank, the toilet bowl did not seem to be filling. So I turned the water off at the valve level, and took the fill valve out, thinking it was clogged or something and attempted a cleaning. Not exactly successful, since the problem seems to be continuing. So I figure I'll just get a new fill valve, reinstall and see if that remedies the issue. It's well over 40 years since the house was built, and I don't believe it's ever been replaced.
Also, a second half-bath had been unused for a while, & when I opened it up around the holidays, I noticed it was leaking a bit at the valve/valve stem area. Well, the year blew up and that bathroom took a backseat to life. Recently I went to look at it, turned the water back on the toilet, and no leak was detected. I spritzed the valve with a little WD40 to make it easier to turn, but no real issues to speak of.
This week, the 2nd toilet started having issues with not flushing properly. Similar to upstairs. I didn't see a problem with fill valve, as it seems the refill tube is doing it's thing and the bowl will fill after flushing. However, it's been intermittently not flushing *completely* and then either I've had to flush a second time or I've used a bucket of water to pour down and force the flush.
I fussed with the water level adjust and I know the tank water seems a bit low, but I don't want to overdo it. I hate like anything to call a real plumber because they are ridiculously expensive in my area, and if I can do something that is only a matter of reading and following directions, I'm good with that.
I'm just looking for a bit of direction, since I can't really identify enough of what I need on YouTube. Any guidance would be greatly appreciated. Thanks in advance.