- Joined
- Oct 4, 2019
- Messages
- 1,442
- Reaction score
- 1,139
- Location
- Winchester, VA
- Hardiness Zone
- 6b
- Country
I use UV only when needed for algae. That is very rare these days since my pond is mature and algae is not much of an issue. It's turned off all winter and may be used for a few weeks in spring, if necessary. But it usually stays off all year.