2nd hernia repair in 4 days ascites leak after first surgery should I expect more leakage?

Possible. If you have leak of ascetic fluid in first surgery , will have same in the second surgery., cirrhotic patients with ascots , if entered into peritoneum , fluid will leak , wound healing will be delayed.
Yes. Ascites need to treated with diuretics , otherwise it will continue leak and close. This can also cause mesh infection.