Lee_Leses
Member
Replace the "cap" part of the fill valve.
I had a detailed talk with technical support at Lavelle / Korky today because i'm still having trouble with the 528T fill valve in this Ultramax. Although it is barely audible, the valve seems to shut off 1/2" below the overflow tube, but then over about 20 minutes the water level climbs the 1/2" to the top of the overflow. You can see in the tank the water line has been rising up to the top of the overflow for a while.
I replaced the cap with a new one, but the slow leak continues. So I called Korky for a question and answer session. I found out a lot and wanted to share it.
The standard "quiet fill" 528 available at Lowes is NOT the proper fill valve for the Toto toilet! If you use it, the fill ratio between the tank and the bowl is not correct, and will result in low bowl fill levels.
The part of the valve that is different in the 528T, if I understand, is something in the main black body that screws to the bottom of the tank. The special part is NOT any of the parts that the red part of the valve seats to or the black filter stack that has the filter in it that pulls out. The cap is the same for both the 528 and the 528T, as stated on the package the cap comes in.
I then asked why the 528T is so much more expensive than the standard 528. I was told it's because the modifications to the 528T are done by HAND at the factory resulting in much greater labor costs. Per the rep, the part that is modified is called a "flow restricter."
I asked if Korky / Lavelle valves are used in brand new Toto toilets, and I was told yes, that Korky makes some, but not all of the fill valves that Toto either did use, or does use. I'm not sure if Toto is still using Korky parts or not, but they were. I asked if Korky plans to continue to make the 528T and the rep said as far as she knows, yes.
Lastly, the rep told me that there is a black rubber part in the float assembly that I should try to pry out and turn over to use the other side of it. If that doesn't stop the slow leak then I am to try replacing the entire assembly or at least the float part from a new valve. She said the float part is the same and I could use a float from a standard 528 from Lowes which is what I will try next.
It's SO much easier having this information available 24/7 rather than having to catch the company during the day when they're open. I hope this helps someone!
Lastly, found online for the 528T
Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA
I had a detailed talk with technical support at Lavelle / Korky today because i'm still having trouble with the 528T fill valve in this Ultramax. Although it is barely audible, the valve seems to shut off 1/2" below the overflow tube, but then over about 20 minutes the water level climbs the 1/2" to the top of the overflow. You can see in the tank the water line has been rising up to the top of the overflow for a while.
I replaced the cap with a new one, but the slow leak continues. So I called Korky for a question and answer session. I found out a lot and wanted to share it.
The standard "quiet fill" 528 available at Lowes is NOT the proper fill valve for the Toto toilet! If you use it, the fill ratio between the tank and the bowl is not correct, and will result in low bowl fill levels.
The part of the valve that is different in the 528T, if I understand, is something in the main black body that screws to the bottom of the tank. The special part is NOT any of the parts that the red part of the valve seats to or the black filter stack that has the filter in it that pulls out. The cap is the same for both the 528 and the 528T, as stated on the package the cap comes in.
I then asked why the 528T is so much more expensive than the standard 528. I was told it's because the modifications to the 528T are done by HAND at the factory resulting in much greater labor costs. Per the rep, the part that is modified is called a "flow restricter."
I asked if Korky / Lavelle valves are used in brand new Toto toilets, and I was told yes, that Korky makes some, but not all of the fill valves that Toto either did use, or does use. I'm not sure if Toto is still using Korky parts or not, but they were. I asked if Korky plans to continue to make the 528T and the rep said as far as she knows, yes.
Lastly, the rep told me that there is a black rubber part in the float assembly that I should try to pry out and turn over to use the other side of it. If that doesn't stop the slow leak then I am to try replacing the entire assembly or at least the float part from a new valve. She said the float part is the same and I could use a float from a standard 528 from Lowes which is what I will try next.
It's SO much easier having this information available 24/7 rather than having to catch the company during the day when they're open. I hope this helps someone!
Lastly, found online for the 528T
Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA
Last edited by a moderator: