Had too many families for night over, using shower , hence water pump. I forgot about off grid.
So 10 hours pumping is 200amps, and twice filling tank is 220 amps, plus opening fridge many times is about 40 amps, a total of 460 amps. The batteries voltage was 18.5, nearly dead flat. All inverters switched themselves off. Lucky we are still also on mains powers as well.