Need to fit new washbasin where hot water supply is from tank/cylinder at about 0.2 to 0.3 Bar and cold is from mains at full pressure. I would like to fit a single hole mixer but I believe some are a problem in that cold supply pushes water back up hot with possible side issues. I believe there are mixers taht will do the job but B&Q , Wickes etc don't seem to be able to advise.
Has anyone please got experience on this issue and can reccomend a suitable mixer tap or taps.
Regards Dave