We just replaced the whole system in our toilet. It use to have a flushing ball valve and it worked great until it broke. It flushed everything down the first time no problem. Now with the new flushing system it's having a hard time just flushing down the TP. Did I not install it properly? I set it to the highest water fill line possible and made sure the chain is holding up the flapper long enough. Do I need a better system? If so what's the best flushing system to get?
Plumbing – Why isn’t the new toilet flushing system working as well as the old one
plumbingplumbing-fixturetoilet
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The overflow tube drains directly into the bowl, not the tank. The only way I can think that it would prevent the tank from filling is if it was cracked or had a hole in it and allowed tank water to drain into the bowl. If this was the case, you would notice the fill valve cycling if it was a slow leak or never shutting off if it were a large leak. The reason the tank fills quickly when you divert the bowl refill tube into the tank is that you are simply not splitting the water from the fill value between the tank and bowl any more.
It sounds like your fill valve assembly is the problem. The fill value has 2 outlets, one that directs into the tank, and the other that sends water into your bowl refill tube. My best guess is that something inside of the fill value got clogged with sediment, hard water deposits, or something else that restricted it. These are relatively cheap to replace and likely not worth the time to clean them out in my opinion.
It's fine. That's just air dissolved in the water forming on the nucleation points of the rubber.
Best Answer
I replaced the systems in all 3 toilets of my current house when I moved in, and I have had endless minor problems with them since. "They don't make 'em like they used to". I get double flushes about have the time and keep tweaking the flapper settings. I am about to start replacing them again with high-end adjustable flush systems. Anyway, the height of the refill tube, and the height of the water is key to a good flush. Regardless of how much water you use per flush, you want the water to be as high as possible when you flush. Some systems have shorter refill tubes than others. And you want the water to come within about an inch of the top of the tube, but not higher than the water line from the valve, or it will siphon water continually.