I have a commode tank that has a small plastic tank which has been put in to save water. I want to remove it and install parts that will allow the tank to fill with water. How to I remove and install new equipment inside for more water per flush?

I have a commode tank that has a small plastic tank which has been put in to save water. I want to remove it and install parts that will allow the tank to fill with water. How to I remove and install new equipment inside for more water per flush?

What does your present ballcock look like? (See images). Can the plastic tank be removed with too much trouble? Cheers, Tom

There is such a thing as a pressure-assist toilet which will have an inner tank. Take a pic of the guts and post using "Go advanced/manage attachments"