Couple of things you might want to do based on my experience. First clean and lubricate the spring in back of the peddle with silicone. Get some good toilet chemical that not only breaks down waste but also cleans your sensors and LUBRICATES your valves. Pour some of this chemical in the toilet and let it set. This will lubricate the valve in the toilet. So, every time you change your chems just let the lubricant do the work on the valve. Also, if you don't have one and are handy, install a shut off valve so if the toilet does leak you can shut the water off. I also purchased a battery water alarm at Home Depot for about $9-$12. You put it on the floor and if the toilet does overflow an alarm goes off as soon as the floor gets a little wet.
SORRY. DID NOT NOTICE I RESPONDED BEFORE. LET US KNOW IF THE PROBLEM IS SOLVED.
