On the news this morning they have mentioned that the peak times for water usage are 7-9am, and 5-8pm.
I would guess that most people have more than enough to do getting themselves & their families up and out of the house in the morning, so water usage for tanks is unlikely to be high at those times.
For those of us who work from home, or are generally at home during the day, may want to consider performing tank maintenance at the off-peak times. I'm trying to do this, though it does mean storing the waste water until late evening/early next morning to use on the garden.
Having a clean car has never been a top priority for me, ditto for windows, etc. and my laundry is piling up (great excuse to be a tad lazy on that front). I may have to give the suggested showering method a bash as well.
I feel obliged to be as frugal as possible with water because Cambridgeshire is a very agricultural area, with a huge amount of veg being grown, and obviously the water usage in this weather for growing crops is just as large, and essential. This area also gets relatively little rain, and I never considered that as a down side when moving here.
As this weather has been forecast to continue for quite some time, I'll be having a serious look at my tanks over the next day or two. I'll be looking at increasing the water testing regime whilst reducing the water change quantity (just to be on the safe side), and getting some more plants into some of the tanks (especially floating plants).
Some of my tanks are substantially under-stocked, so I'm hoping they will do well with reduced volume water changes, although I do have a slight problem with the axolotls - one of them has cut his leg. On the up side (
) this means I'll be moving him to a quarantine tank, with the main tank working on reduced volume water changes. On the down side, this means almost completely emptying their large tank today so that I have a chance of catching him. I can use some of the tank water in the quarantine tank, and the rest on the garden, but I will have to use a few hundred litres of water today. Not ideal, but absolutely essential.