Coping to waterline tile grout falling out

JaySav

Bronze Supporter
Mar 24, 2019
126
Memphis, TN
Pool Size
36000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Hey guys I’ve searched quite a bit through the site and haven’t really found a definitive answer to coping/waterline tile grout missing. Most posts I find talk about actual tile grout and not the grout separating the coping and tile. I’ve seen deck-o-seal and a poly type sealant mentioned. I want to go through and finish removing all the grout that’s left in there and redu it. What is recommended for my particular situation? I’m assuming just go around the pool with a scraper to remove old grout? Probably will try to use a shop vac to help not destroy the pool. Thanks guys!!!!
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,843
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
You want a flexible barrier between the pool (tile), and the coping.

Something like Novagard Silicone Grout should work. I imagine there are other products too.
 
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KJB1

Well-known member
Jan 8, 2021
122
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
Hey, I have the same waterline tile it looks like and the same problem. I’m going to try 3m polyurethane sealant. I did a couple test spots and it seems to be holding up. I think builders only put grout because it looks great until the check clears.
 
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