Why on earth did I bother going to the trouble of putting a heat dump in my system?
Last night she was in the shower singing her heart of for the best part of an hour. On the TDC3 controller in HV2 mode, I
Perhaps even a bath would have been a saving in water!?
Do you have a mains pressure shower? If so look at replacing the head, either ceiling or wand variety with an aerating head. They work down to a few litres/minute and are better than using a flow restrictor device which will just give complaints of a faulty shower!
I have found that using the aerator device means that you still feel get wet, feel refreshed, save lots of water/energy. Also if you are willing to be in there for +10 mins you just feel like you want to get out! Perhaps its because the water is a lot cooler by the time it gets to your feet, rather than a luxurious rainwater soaker which means your feet get hotter water.
My advice would be to try one and 'break' the old one

Search for 'Oxygenics shower head' on ebay or google. They are the norm in USA and OZ where you can get very basic ones for a few dollars from the diy sheds.