tungularafishcamp
Veteran Member
- Joined
- Sep 30, 2010
- Messages
- 1,210
- Location
- kodiak island, Alaska
- Tractor
- kubota L2800, 1/2 of a L48
If you have a decent sized inlet/outlet pipes that always have a good flow I don't think that you would have any problem with freezing at 20. I would be concerned with the tank freezing though as the ice expands it can go up in the pool but in a closed in tank it might just blow it out.
:2cents:
Rick
:2cents:
Rick