Winterizing BBB method

[CarlD]

My take?
Wait till the water is about 60 deg to shut down.

In the meantime, raise FC to 12-15 and keep it there.
I'd like to see pH at 7.6-7.8, but at 7.5 I'd leave it alone and not mess with it.

Other than that, I think you are all set. I'm doing the same--my water is about 64 deg so I'm waiting till it goes to 60 or less to shut down. Meanwhile, I have a safety cover and it's on all but the last few clips and everything that can be done (ladders, steps, umbrellas) have been put away.

[Jakebear]

OK & thank you. I neglected to mention that I use a drop in sump pump to circulate during the winter. I take the pool pump off line, drain and remove it when freezing weather comes. The pool probably will not be down in temp yet but we will see.

Is there a particular order to doing the polyquat and raising the FC?

[CarlD]

When you add the Polyquat, let it circulate for 24 - 48 hours. Whatever your chlorine level (FC) was, it will drop to or near zero--that's what happens when you add a lot of Polyquat. Then you add chlorine again to get FC back up. That's all.

[jagwire22]

Will the chlorine level stay high enough all winter without adding more? And if it is necessary to add more, how do you do it with no pump for cirrculation?

Thanks for any help!

[CarlD]

Once the water gets really cold, there's no chance for algae growth, or need for more chlorine. Algae has alot of trouble growing in water below 60deg, and is more and more inhibited as it gets colder. Rule of thumb is that algae doesn't grow AT ALL below 50 deg. Since I'll get a foot of ice or more on my pool, I know the water is in the 30's--no algae growth there!

The idea is to keep algae from starting between the time you close and the time it's too cold to grow. The heavy dose of PolyQuat further inhibits algae growth and the shock level kills anything there. The covered pool tends to hold chlorine levels far longer because there's no ultra violet getting to the water. Even the mesh covers work very well at this (I have a mesh safety cover).

Once I close, all I do is check the water level once a month and syphon off water if it's too high.

[Poconos]

As for algae growing in cold water...read my post (#3) in this thread.

http://www.poolforum.com/pf2/showthread.php?t=327

I can't explain it.

Al

[Jakebear]

Thanks to all for your comments.

Jagwire, My experience (4 winters) has been checking the FC level monthly as long as there was no ice on the pool. I have a LoopLoc Cover. Over a month period I was almost always real close to zero Free Chlorine.

Understand --- this is all before I knew any better (this forum).

Looking at my past records I used CalHypo to do a “double shock” (Raise FC to ~ 11 ppm) and circulate 12 hours with a sump pump --- cover up and wait another month. I never had algae doing it this way (maybe just lucky), just lots of calcium dust and other fine debris on the bottom + a few worms and spiders.

This year will be a bit different using the Quat and Bleach rather than a KIT, but I will probably continue with the monthly (or more often) test, circulate and add bleach to maintain a FC level which will be consistent with Ben’s Best Guess Chart.

[CarlD]

As for algae growing in cold water...read my post (#3) in this thread.

http://www.poolforum.com/pf2/showthread.php?t=327

I can't explain it.

Al

It's the ice-fishing!