"We 've had a few ups and downs ... it's quite hard when you get bigger volumes come through the door but the lifeguards are definitely keeping on top of it."
Mrs McFadzean said feedback from those visiting the pool has been great: "Everyone's quite happy Trust House had put money towards it".
Mrs McFadzean expected the last few days to be a bit slower as the kids head back to school.
Masterton's Jo Scott was at the pool on Wednesday with her daughters Chloe, 3, and Keira, 5.
She said this was their second visit and they planned on at least one more.
"It's been great. It's been the perfect week for it with the weather."
Entry is usually $5.10 for adults and $3.60 for children, students and over 60s.