sloan valve WC - do i need to replace?
My DH and I have just purchased a 1929 home and as part of our immediate renos have gutted the kitchen. As part of that we need to move some of the pipes that lead up to 2nd and 3rd floor bathrooms. The plumber (who comes highly recommended) says that he has to replace out the old pipes (which are larger diameter than ones used today) which means we have to replace the two sloan valve toilets. Is that a lot of hooey? I am actually willing to do it for eco purposes as I know that these are high water usage, but would like to feel confident about the real reasoning. He's already proposed some other 'fixes' that don't seem necessary so I'm a little concerned. Thanks for any advice you might have.