Pool math set up

[Wenglehaupt]

I am trying to configure the Pool math app for my pool. In the set up for pool type you only have 3 choices: plaster, vinyl, or fiberglass. If you have a gunite pool with a pebble tec finish, what is the best choice? I assume not plaster. Thanks

 

[Richard320]

It is plaster. That's what holds the pebbles in place.

 

[Wenglehaupt]

Thanks. I assume while the pool has a plaster base, the plaster does not interact with the water because of the coating. Just wondering if the set up in the app is just asking pool type as a demographic type question or if the pool type will change the ranges for some of the readings (such as CH)

 

[Richard320]

Thanks. I assume while the pool has a plaster base, the plaster does not interact with the water because of the coating.

Yes, it does. If you let the water get corrosive you'll start shedding those little colored bits when you brush.

 

[PoolNewb2020]

Its plaster with colorful aggregate mixed in, companies just come up with fancy names to make it look like they invented the product.