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I have inherited a toilet (pictured). In the tank, the level -- to which the water currently fills -- is indicated by the red arrow. There's an old water-level stain at a much higher level (green arrow) which seems to be the level to which the water used to fill at a prior time.

It appears that the flush-valve system was replaced at some prior time, and the water started filling to the lower level (red arrow)

Currently, the amount of water per flush is lower than I prefer, and I would like to raise the water level back to the original level (green arrow).

My question: is it possible to adjust the flush-valve system to do this, or will I need a new flush-valve system. If the latter, your advice on something I can easily get from Menards / Lowes / Amazon will be appreciated.

Tank brand: Mansfield, No. 160, Bush Valve Model 211

Current Flush-Valve brand: Korky

enter image description here

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    Have you tried looking up the model number you have online? I'd start there...try to find an installation brochure or manual. I am almost certain any of these will have a way to adjust the level.
    – peinal
    Sep 10, 2022 at 1:24
  • Might have a valve for low flush. Most toilet fill valves use a adjustable float valve, where the water raises the float to turn off the fill water. Not sure about your valve.
    – crip659
    Sep 10, 2022 at 1:49
  • @crip659 I would say all toilet valves have fill level adjustment
    – Traveler
    Sep 10, 2022 at 2:47

1 Answer 1

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I found some instructions here:

Unclip the refill tube from the overflow tube.

Rotate the float (the silver part) 1/8 turn counterclockwise to unlock it.

Move it up or down to raise or lower the water level respectively.

Turn it 1/8 clockwise to lock it in place.

Clip the refill tube on the overflow tube.

Fill level adjustment

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  • @thanks_in_advance - Note that you have the "internal float" style.
    – Hot Licks
    Sep 10, 2022 at 3:04
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    Please use the voting system if you like the question or answers.
    – Michael Karas
    Sep 10, 2022 at 5:25
  • @MichaelKaras thank you for reminding me, just upvoted the question
    – Traveler
    Sep 10, 2022 at 5:32

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