Yes. There is an Ice Pack exchange system on site located at the southern end of the Market Town.
You can exchange thawed packs for frozen ones from 17:00-18:00 on Sunday & Wednesday. 14:30-15:30 on other days until Saturday. Only ice packs between 400-600g can be added to the pool and you cannot be guaranteed the same packs back at the end of the week. In hot weather, demand may outweigh supply.