thanks,that was my main concern , that it could affect my house value, yes you are correct you cannot really notice it unless you stand in the shower . when he installed the shower l thought it was great until l stood in it, so buyers inspecting the house probably wont notice it. do some shower bases come with steeper inbuilt slopes then others, my base has a steep inbuilt slope and becuase he installed it on a slope it made it even worse, it feels like standing on a hill . If you look at the spirit level in my photo the bubble touches the outer line but doesnt go over, so would that be acceptable practice and not something l could make a claim against.