"The main problem is they've cut the fence to get in. And every time they've cut the fence it's in a new place as well. So there's obviously considerable expense to the school to fix it and it's funnelling money away from the kids and where it should be being spent."
The school caretaker had patched the fence up, but it was in now such a bad state all the wire meshing needed to be repaired.
"They've gone about once a week for a time over the school holidays."
Soffe urged people to get in touch if they recognised either of the men.
The school did not want to press charges, but wanted police to speak to them and let them know how their actions had affected the school.
"They just want them not to come back rather than have any criminal charges laid against them. They are not out for a pound of flesh."
Police had spoken to the school's neighbours but they had not seen the midnight swimmers.
Soffe was unaware of any instances in Hamilton where people had unlawfully accessed a swimming pool, but a Northland school faced similar issues.
Whau Valley School principal Steve Jenkins told NZME last week people cutting holes or climbing over fences to access the pool in recent years had resulted in the school having to replace pool covers and security cameras which cost about $700 each.