Thanks Chris , I have the aqua hot out ! It will be back from Co. Monday. I don’t see anything leaking down from above ? I only ran the shower a little , I have the hot and cold water connected now wit/h a by-pass at the aqua hot . I’m still going to have to remove the gray water tank to fix the floor , the plywood under it is also bad. I just hope it’s not the solid tank☹️but it seemed like it come from the back forward ? I have been in the plumbing and heating business for 45 years. Rule No. 1 it don’t have to make sense to be true