I cant tell you what to do about water boarding your wiener, other than say Congratulations! With water regulations and efficiency standards, breaking the toilet will do nothing but net you another low flow toilet and if your scam isn’t done well, possibly an eviction. Here is what you need to do to get past this situation.

The toilet probably has a standard tank on the back, just remove the lid, measure the plastic tube that comes up the center of the tank. Usually it’s like 3/4 or 1”. You want the OD measurement not the ID. If it has a small plastic ring holding the small tube, try to twist that off of the tube. If it doesn’t come off, then take your measurements using the outer ring instead of the rigid tube. Take that measurement and go to home depot or even auto zone. Get a 1’ strip of pipe with an ID as close to the toilet fill tube OD. You will probably not get anything exact. But get as close as possible. Grab a package of screw clamps while you’re there. Now go home and test your new hose. If it doesn’t slip over the rigid pipe in the tank, don’t stress it. Cut a small slice into the end of the new flexible hose, start with 1/4-1/2” slice. Test it now. If it seems to start but doesn’t go completely, that’s what you want. Now coat the inside of the flexible pipe with dawn dish detergent. Or some other thick soap like laundry detergent. Use your fingers to wet the rigid pipe top. Remove the small fill tube and just let it lay to the side. Ohh you may have to turn the water off behind the toilet just so you’re not listening to it run. Now with the rigid pipe wet at the tip, take your rubber hose and slowly and gently rotate it while applying downward pressure onto the rigid pipe. If it doesn’t go over it easily, remove it and use a cigarette lighter to heat the flexible tube. You may have to cut your split a little larger. I wouldn’t go any more past 3/4” max. Now with the tube heated up, gently but firmly twist the hose down over the rigid pipe. Now turn the water on and check to see if it is leaking. If the water isn’t coming on because the water level then push down on the floaty thing. Water will fill the tank. Be careful. The small hose I told you to lay to the side will spray water now. Once the water has filled up over the joint where the flexible hose meets the rigid pipe, release the float. Listen to see if water is draining into the rigid pipe. If it’s a small trickle, that’s fine. If it’s still flowing Heavily, attempt to reseat the flexible tube. If it’s just a trickle, slide a clamp down to where the clamp will grip the flexible tube and hold it onto the ring of the rigid pipe. The splice in the pipe will hold the clamp but you will need to take the clamp a little lower just to get a good seal below the water line. use a screwdriver to tighten the screw on the clamp. Tighten it to where it’s snug fitting but not so tight that it breaks the rigid pipe.

Now pay attention to where the water line is. Toss in some toilet paper. Like you would if you had just smoked a bowl and left your worries behind. Now flush the toilet. Did it flush like you want? If so great. Adjust the float up to where it fills then tank to the level the water was at, or a little higher. Over you’ve got the water level adjusted, gently cut the flexible tube to about an inch or two above the newly adjusted water level. On we that is done, the fill tube you laid aside earlier, just stick it down inside the “extension” you just added. It will be fine, if it has a clip, spread the clip to get it to hold onto the tube material. Once that is done and the tube is cut to the right length, the replace the tank lid and your done. That should last 5-6 years before you need to adjust it. When you hear the toilet running every hour or so? It’s time to adjust the tube. Just pull it off and reapply soap and slip it back down over the rigid tube.