hi guys, is there any reason why i cant do the following: Both 2 port valves side by side on the first floor. It would streamline my plumbing to do so as my manifold area is getting quite bogged down with things, so looking at any positive/negatives for that. I can have a valve down at the manifold if i really to, so i guess its either or. My preference is both up there to keep them together. Any reason i shouldn't do this, @Nickfromwales, you are the fountain of knowledge on here so i