Are swimming pool tiles smooth or rough

Tiles / joints

Pool body, construction, sealing (polyester film etc.), tiles, concrete renovation, etc.

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6 posts • Page 1 of 1
bluesunny
Posts: 24
Registered: 03.03.2007, 12:09
Place of residence: Melsungen

Tiles / joints

Contribution from bluesunny » 03.03.2007, 12:32

I'm in the process of cleaning the indoor pool in our newly acquired home. The pool is poured from concrete and completely tiled. When cleaning, I noticed that the joints on the floor drain and on the stairs, for example. T. are soaked.
Can someone tell me if I can re-grout the joints with normal grout?

Thanks in advance

amateur
Posts: 333
Registered: 02.07.2004, 09:14

Contribution from amateur » 05.03.2007, 10:59

Hello sunny,

if you mean the bathroom grout from the hardware store with normal grout then no. There are special grouts that are approved for use in swimming pools. There are a few manufacturers, e.g. PCI, Sopro, Mapei etc. I took Mapei Ultracolor. Not because it was better than the others, but because it was in the color of my choice.

Of course, check beforehand what material your joints are. It could also be a resin joint. Then of course no mineral grout will do. Since it normally takes a few years to wash out a joint, your pool will probably be an older semester (I guess> 20 years?). At the time, as far as I know, only mineral grouting was used.

So if it is actually a mineral joint, the old grout has to be scraped out at least three millimeters so that the new joint will hold. Layers that are too thin burn and do not last. Everything that is brittle, loose or crumbly must of course also be removed. If the joint is more than a few centimeters, you should seriously consider buying a Fein Multimaster. This makes grouting much easier and without any major risk of damage to the floor. However, if you still have the good old cement grout mixed on site (slightly yellowish color and rough, sandy surface), the Multimaster will also bite its teeth. I've tried a few things but haven't found a way to get this type of joint out without putting a lot of tiles on it.

By the way, it is very difficult or even impossible to find the exact color. You will see the repaired areas later.

I wish you success,
Andreas

bluesunny
Posts: 24
Registered: 03.03.2007, 12:09
Place of residence: Melsungen

Contribution from bluesunny » 05.03.2007, 12:44

Hi Andreas.

Many thanks for your response.

As a greenhorn, I also suspect that it is a mineral joint. The pool is already 30 years old but is still in very good condition. In addition, the joints tolerated the hydrochloric acid treatment of the tiles quite well. If it were synthetic resin, they would certainly have been attacked more.

amateur
Posts: 333
Registered: 02.07.2004, 09:14

Contribution from amateur » 05.03.2007, 13:48

hello sunny,

a 30-year-old pool is guaranteed not to be resin-grouted. Probably thick bed laying with a sand-cement joint like mine. Are the joints really smooth or noticeably rough like fine sandpaper? If so, enjoy yourself The stuff is so hard that any tool will slip out of the joint and into the softer tile. I wanted to re-grout the entire basin (joints were unsightly / washed out, but tiles were still perfect). Would have been a total of around 700 meters of joint. Even with a diamond broach it took me more than an hour to do two meters. After two broken tiles I gave up.

I'm curious if it works for you.

I wish you success,
Andreas

bluesunny
Posts: 24
Registered: 03.03.2007, 12:09
Place of residence: Melsungen

Contribution from bluesunny » 05.03.2007, 13:57

Yes, the joints are rather rough. But really not much is washed out. And the joints that are washed out are then washed out relatively deep, so that the new joints should actually hold. It is probably only for the optics anyway, because the joints have nothing to do with the tightness of the basin if the tiles were placed in a bed, right?
I even know the company that built the swimming pool back then. I'll get in touch with them sometime.

amateur
Posts: 333
Registered: 02.07.2004, 09:14

Contribution from amateur » 05.03.2007, 14:45

That's right, tiles and joints of any kind have absolutely nothing to do with the watertightness of the pool. If the pool is leaky, tiles do not change anything. So it's a purely visual problem. If you know the company, it is definitely a good idea to ask. Perhaps the employee is not yet retired or someone else can remember. In the past, swimming pools were rarely built.

I wish you success,
Andreas


6 posts • Page 1 of 1