Spa blower pipe concerns

[Bradly2osu]

So I have a few questions, first winter with new pool in north ga, (north Atlanta metro area) I have two pumps I’m going to winterize one that just runs my water descents, they are 4’ in the air and I feel it’s pointless to run them all winter. Just making sure I’m doing it right(I did have a pool repair company out and go over this part with me so I think I’m good there. (Blow the line, plug the one skimmer basket that feeds it, block skimmer opening, throw in antifreeze and emptied water bottle or something to prevent any freezing if water does get in skimmer basket. unhook and drain pump and plug the other line. Blow the water out of lines to water descents). If anything else needs done appreciate any suggestions. However they weren’t the most helpful with the second part. My other pump I’m going to let run when it gets into freezing temps. Mainly for spa use. I do have freeze protection on my Pentair equipment, the only part that concerns me is the spa blower line. So this line runs from my spa that is 6’ elevated about 65’ to blower which is also elevated above water line. This pipe gets full of water when running. Their is a check valve on the blower but I do not have a Hartford loop. So if I was going to take blower off the pipe the water is up to about 6” below the blower which is water level. So with this 1-1/2” pipe being filled with water 6’ in the air concerns me with freezing. It already concerns me running this far with no hartford loop because I’ve had a few instances with issues running the blower. But even with a Hartford Loop installed correctly id have a check valve above waterline I’d have 6’ of pipe with water how will this not freeze? Is it possible to do a Hartford loop and put check valve at ground level instead of the top of loop ( as I still have access to this) or could I wrap it in electrical heat tape and rubber insulation, but not sure how well that will do. Obviously it gets in freezing temps here mostly overnight and warms up during day, but equipment is also on the north side of house mostly shaded. I guess I look at worst case scenario when it stays below freezing for a week I’d rather be safe than sorry. I know I could put check valve underground inline and just mark it if anything happens I’m just not sure if that would cause more stress on blower pushing through. Even though water would be 25’ away from the blower, rather than 6”. Any suggestions? Thanks.

 

[ajw22]

Turn on freeze protection for the blower circuit and run the blower to clear water from the line.

 

[Bradly2osu]

If I do that then the blower could run 10 hrs a day. Seems there’s gotta be another way.