Review on 🚽 Mansfield 225-5907: The Ultimate Stop Cap for 210 and 211 Flush Valves by Daryl Barton

Five stars because your toilet won't flush properly without this little thing, but honestly it's probably worth every penny. If anyone runs into the same problem we did, I'll provide a little background on why we needed a new one. One day I noticed that the toilet was taking longer to fill than usual and the sound of filling the tank with water was different. So I removed the cap from the tank and did a few test washes. What happened was the cap popped out every time the flush lever was pressed. Because of this, the hose through which water flows to fill the toilet was not sent to the drain valve, so the water level in the toilet did not reach the norm. Anyway, I tried to screw the old cap on really tight and it took a flush or two. I thought it was just disassembled so I ordered a new one. Fast forward to the day I got the new one. I took off the old locking cap and figured I'd just screw in the new one and the bingo bango was done. nope Upon closer inspection, I found that half of the threaded portion of the purge valve was missing. It broke INSIDE the old plug! So while the new one threads in a bit tighter than the old one (because the top half of the flush valve stem isn't tucked in), it's still hanging by just three threads. I assume it will eventually pop out and I'll have to replace the entire purge valve. Bottom line: if your test cap bursts, check to see if the top of the flush valve stem is broken internally before ordering a new one. In that case you will need a new valve which I believe comes with a plug.