I have the Aqua Magic V hand flush model. Found water on the floor behind the toilet. Was dripping down the water tubing. Turned out the flush valve has worn out and leaking through the stem assembly. I have bought replacement parts but will need to unbolt the toilet from the floor to replace the valve. The valve sits in slots and slides out toward the wall, but I need an extra 2 inches to remove the valve. I also bought a flange seal and the tubing and nozzle that connects to the valve outlet and toilet rim. Will probably replace it this weekend. I have a shut off valve in my line going to the toilet, toilet sprayer and accumulator tank so I was able to stop the leak. I've been using the shower wand to flush and rinse until I have time to replace the parts.