Dough is dry can I add more water after mixing
My starter grew so much this morning that it went right over the top of the jar and all down the sides so I decided to quickly make a loaf of bread, not realising that I had obviously lost some of the starter with all the mess. So I weighed out the 460g of flour and then went to weigh out 300g of starter but if I wanted to keep 75g for my next loaf I only had 280g of starter. I added 230ml of water and 10g of salt and mixed it in my food mixer but when I took it out it seems to be quite dry. I've kneaded it a little but and now put it in a container and not sure what to do next, apart from throw it away, which seems a bit of a waste. Can I just add some more water to make it a wetter dough or is that not the answer.
I know I need a bigger jar but everytime I try to use a 750ml jar for some reason the starter never gets going. If I use the 600ml one that I got with the starter it seems to work fine, which I really don't understand.