Dear all， A new guy here and we have a big freezer in Guangzou China. We found the floor crack and heave recently. the technician told me the the sub-floor heating system had been stopped for many years and this should be the reason. this system use glycol system and the pipes is 15mm. I use some threa guide to insert to the pipes but it can't go throught. Can anybody help me on this?

We drill a hole in the cracked floor and removed the surface contrete and the isolation layers. I did't find any ice in the isolation layers.

where is the ice?

Urgent.