Polyquat 60 vs Full SLAM

[Yarzy]

Hi, I am getting ready to close my pool for the first time and I had a question about polyquat 60 and SLAM. Is there an advantage/disadvantage of using polyquat 60 vs full SLAM? From what I have been told, it is half SLAM levels and polyquat 60 or no poly and full SLAM. I am trying to understand why I would pick one over the other. Can someone shed some light on this? I would be using a solid cover for my pool during the winter (no idea if that matters in your response or not).

Thanks!

 

[ajw22]

Flip a coin. Try one every year and see which one works best for your pool environment.

Algaecide - Further Reading

www.troublefreepool.com

 

[IceShadow]

Here's a previous thread for review:

Confused about FC level and dosage when using Poly-Quat 60 at closing

We are closing our pool in a few days with Poly-Quat 60 since the weather has been unseasonably warm this week (low 80s) and the water temperature has risen to 68 degrees. I've read all of the information on here about using Poly-Quat and I'm confused about when to add it and the dosage. The...

www.troublefreepool.com

 

[duraleigh]

You misinterpreted what you were told or the teller was misinformed.

There is NO such thing as a half SLAM. A SLAM is a process to clear your pool and essentially has a different purpose then closing.

Follow this process

Closing an In Ground Pool

Winterizing a pool is essential for keeping your in-ground pool protected during cold-weather months. This Pool Repair guide will show you how to do it.

www.troublefreepool.com

Add polyquat 60 if you like but it is not mandatory.

 

[Newdude]

There is NO such thing as a half SLAM. A SLAM is a process to clear your pool and essentially has a different purpose then closing.

Half SLAM *level*, not performing a half SLAM.

Closing at SLAM level with PQ is rumored to consume more of each, so our reccomendations for PQ users has been to close with half SLAM level per their CYA and add PQ.

What we really need is a way to test PQ levels after like we can with FC to finally put this debate to bed.

 

[Newdude]

Yarz, the reason for higher than normal FC and/or PQ is to bridge the time when you close, until the water is well below algae growing temps.

Mother Nature likes to troll us all and throw one last heat wave at us after closing every year (so it seems). If you closed now either way, you'd likely be fine for the few weeks it takes for winter to officially be here. If possible, it's best to pull a corner in the deep end just before it freezes mid winter. Test and add back to how you started and that will all but guarantee you to be covered through the winter. Then open early with some residuals still in there helping.

You can easily brush the additions around the shallow end. The brush goes a long way with only a smaller area open up top. An ounce of mid winter prevention whoops a pound of springtime cure.

 

[Mdragger88]

To be clear, As is mentioned in the closing article-
you raise to slam level for 24hrs & pass oclt to be sure nothing is actively growing then if you wish to use polyquat you allow fc to fall to 1/2 of slam level before adding it.
Its not raising to 1/2 slam level or raising to full slam level.
Its raise to slam & cover
Or
Raise to slam, let fc fall, add polyquat,cover.

 

[JoeSelf]

I want to add that you need to run pump over night to circulate the polyquat the night before closing.

 

[Yarzy]

Thanks everyone, I think I understand. Seems like it full SLAM and close and full SLAM, wait, add PG, then close. I appreciate it everyone!