|Our DIY low flow toilet with the lid removed|
Now I have solved this with some empty beer cans. By placing five of them, filled with some small rocks and mostly water, they now displace about 2.5 liter of water in the water tank. When flushing less cold water enters the tank, and it also gets some stored heat from the beer cans, so the outside surface of the water tank now never gets so cold that condensing starts.
Two more good things happen at the same time: Less water is used and less heat is stolen from the warm air in the room.
|Two displacement cans on one side, three on the other makes a low flow toilet|