coping cracks. What should I use to fill gaps between tile and coping, coping and deck

If you want something flexible put Deck-O-Seal in that gap.
 
oh, I didn't know it can be applied vertically.

thanks

They have a product for vertical surfaces. The HS-1 SL Pool Deck self leveling product for horizontal surfaces. The other one for vertical.

 
They have a product for vertical surfaces. The HS-1 SL Pool Deck self leveling product for horizontal surfaces. The other one for vertical.


Question - does it make sense to seal this season before closing or wait until next season? I have solid cover, I close with water about 6" below skimmer level and it's usually below skimmer level when I open. I don't think rain\snow water is getting under the cover unless wind is blowing it there. Looks like I'm your neighbor, maybe 100mi south, almost the same climate

The only reason I'd want to delay is because I believe no matter what I do, the seal won't last long because of the deck movements in the winter. On one side where the gap between the deck and coping is about half an inch deck raises above coping by about half an inch the other side gap is about an inch and coping is cracking and it feels like some 1-2ft of coping are already lose, can soon be lifted up.

This pool is about 15yr old. 10 years ago there were no issues, but gap between coping and deck was never filled. I filled the gap with backer rod and vulkem 45, but seal didn't last long, maybe a couple seasons. I don't know coincidence or not, but after filling the gap the coping started cracking and I started having issues with seal (mortar or grout) between coping and tile.
(similar thing with 15yr old asphalt - 10 years ago no issues no cracks at all, but then I decided to seal it and now I have a few long cracks, some are 1/4" wide. I think water seeps in under seal while seal doesn't let it evaporate during the day and then it freezes and expands at night)

Thanks
 
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you have a flex seal from concrete to coping that should be enough for normal expansion. I dont see any cracks in the deck, when you say its moving what does that mean? theres no easy way to remove the ring or make room around it. either way its gonna look like a patch. I would make a square or diamond cut and remove the concrete and replace with similar pavers so it blends in. that cracking on top of skimmer may not be from pressure just normal expansion and contraction
 
Sounds like that gap has been there for a while. I don't think one more season is going to make a difference.
 
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you have a flex seal from concrete to coping that should be enough for normal expansion. I dont see any cracks in the deck, when you say its moving what does that mean? theres no easy way to remove the ring or make room around it. either way its gonna look like a patch. I would make a square or diamond cut and remove the concrete and replace with similar pavers so it blends in. that cracking on top of skimmer may not be from pressure just normal expansion and contraction
There are a lot of cracks in the deck, but some are not clearly visible because deck was painted.
Deck is moving a lot during winter. One side raises over coping by about half an inch. Not sure if Deck-O-Seal would hold, but vulkem 45 didn't.

The seal is no longer a seal, is not tight, water easily seeps through

The crack in the skimmer - I didn't see it when I opened this season. I doubt I missed it, but not 100% certain on that.

Since the crack is above water level - would it make sense to just cut out some plastic hoping it'll stop it from cracking down?

I'll have to pay for this and I wonder if it make sense to take care of this issue now or just wait and see? Wonder what the difference it cost of repair would be.
I didn't own this house when pool was being built, so I have no idea what the skimmer area looks like and whether something can be pressing against the pipe

thanks.
 
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