What's your favorite tank style flush valve? - Page 2 - Plumbing Zone - Professional Plumbers Forum
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Old 07-06-2019, 10:27 PM   #11
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Quote:
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Actually the issues I find most frequently are cracked overflow tubes. Some of them are so brittle that they snap off as soon as I stick my hands in the tank.

The thread jumping issue on the flush valve is something I have found with new cheaper flush valve mechanisms that i'm trying to install on the tank (the 4 dollar ones)

I've had luck re-using the old nut in a pinch, but I hate re-using old parts. Why am I buying this new kit just to reuse part of the old unit?

I like being able to offer complete tank rebuilds because it's a fraction of the cost of a decent toilet. Some people try to argue that they can get a glacier bay for 70.00, but there really is no argument by the time we're done with that discussion.

Speaking of glacier bay and flush valves, anybody tearing out those pieces of junk with the elevated water tray inside of them?



Yeah, some people get on the "Do you think I should just get a whole new toilet?" kick and have a hard time giving it up. Usually it's when I am there for the toilet having clogged because they have hard poops or they used too much paper.



If the toilet is fine(good glaze, no clogged rim holes) then I tell them they are the issue and that if the glaze is fine and the rim holes aren't plugged than toilets don't go bad. And that even if the internal parts are bad I am there now and can change them in a half hour versus us coming back and charging at least another full hour and them buying a toilet.


If they have an older high volume toilet I explain that switching to a newer model can cause even more issues.










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Old 07-07-2019, 10:34 PM   #12
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Korky is my favourite by far.
fillvalve/overflow/flapper/kit
I charge $100-$120, for the Korky W/C rebuild kit with water line.
+ Labour.
I don’t mind paying a little bit more for better quality parts.
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Old 07-08-2019, 09:18 PM   #13
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Added to the above..

When using a Korky fill-valve, make sure the tube from the “fill valve to the overflow” is looped up and over the top (height) of the FV itself.
Like a D/W drain loop, or the fill valve will syphon water out of the tank into the overflow.
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Old 07-12-2019, 02:52 PM   #14
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I have found a lot of the problems with flush valves and internal tank guts is the crap that homeowners drop in the tank. Like the self cleaning toilet bowl crap that has a high chlorine content that ruins the plastic and rubber products. Not so much the chlorine content of the drinking water.
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Old 07-12-2019, 03:00 PM   #15
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I used to work on a lot of American Standard one piece toilets and changing the flush valve what a nightmare. It was hard to get the flush valve to seal. Sometimes when I removed the flush valve the pottery was all wavy. I used silicone sometimes on a new valve and they still leaked. They flushed really quiet and were expensive toilets. A lot of customers bought them in color which raised the price and they matched their bathroom fixtures. I still hated them and did not have a lot of luck fixing a flush valve. The disc style flapper or the ballcock rebuilt kit generally worked or.
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Old 07-12-2019, 03:02 PM   #16
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Quote:
Originally Posted by Logtec View Post
Added to the above..

When using a Korky fill-valve, make sure the tube from the “fill valve to the overflow” is looped up and over the top (height) of the FV itself.
Like a D/W drain loop, or the fill valve will syphon water out of the tank into the overflow.

Yes you are right I watched a few toilets that had the bowl fill tube down the overflow siphon the water out of the tank causing the toilet to constantly fill.
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Old 08-27-2019, 10:39 AM   #17
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Quote:
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I've been through a few different ones and so far the ultra cheap ones I don't like. The nut on the bottom is way too thin and/or the threads are cut way too deep and you can't get it tight enough without the threads skipping.

The fluidmaster one doesn't have that issue, but what I don't like is that the seating portion of the flush valve is 2" off the bottom of the tank. I've come across a few toilets that just won't flush with that style in there.

I've also used the korky one with the adjustable overflow. It's probably my favorite in terms of overall ease of use, but that is definitely reflected in it's price. (my cost is about double the other styles)

Wondering which one everyone else likes the best.

Happy Independence day.
I mostly use Tower-Style 3-4 Inch Flush Valves. The major reason is the feature of 360 degree water evacuation. It makes it a good choice for great flushing power with less water.
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