We stayed at KBC (MKW) after the 2nd flooding on 3/25 (Sat night I think).
The pool was cleaned and re-opened by Monday night and in great shape by Tuesday.
They took a lot more time reopening Kalapaki beach after the 2nd flood. It didn't reopen until Thurs or Fri. KuKui's reopened on Monday night. The staff did great work with all the problems and continuing rain.
After the 1st flooding, the pool and beach were back to normal in a day or 2.
When we checked in Sunday (3/26) they were working on the problem (i.e. the gully just above the valet parking just to the left of the entrance). If you look over the small bridge there is large gully (full of boulders) going toward the back parking lot. They said that had been the problem and they "hopefully" had fixed it - it was a much different water flow than the parking lot problem last year ;-(.
The access road changed daily while we were there as they working on the "old" parking lot problem i.e. flow basically was in from Rice st, thru the old parking lot to the checkin /bellstand then either to parking in the upper lot and then exit via the golf course/airport access road.