I‚Äôm new to fixing toilets, but will do my best to describe the mechanism and problem ... my downstairs toilet has a float ball attached to the top of a fill valve comprised of a grooved tube that fits into a lower tube attached to the bottom of the tank. This may be standard, but the folks at my local hardware store had never heard of it. The problem is that the grooved tube pops up out of the lower tube with enough force to raise the tank lid 1-2 inches. This also causes the water to run continuously unless I: a) turn off the water supply between flushes, or b) remove the tank lid. I can push the tube back down, but it will pop up again within 3 minutes.
I purchased a fluidmaster float cup replacement and was all prepped to install it before realizing that I may have a water pressure problem. If it‚Äôs a water pressure issue, what will happen to all that pressure when the new valve is installed since it won‚Äôt pop up as easily? Should I worry about burst pipes or will it escape through other routes? I would appreciate any advice to help me identify the real problem before I plunge into fixing it. Thanks!
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