Strange patterning on walls

[Golfer2000]

I haven't seen many different pools but when I was draining mine I noticed a lot of different patterns and irregularities on the pool finish. Between this and the calcium build up, I am wondering how to address this or is this normal?

 

[ajw22]

Old plaster looks pretty ratty when exposed. I would just refill the pool with water and not worry about it.

 

[Golfer2000]

Old plaster looks pretty ratty when exposed. I would just refill the pool with water and not worry about it.

Sounds good. Thanks!

 

[JamesW]

It might be just in the plaster or maybe in the gunite/shotcrete.

How old is the plaster?

When the plaster is replaced, you should have all of it removed and then you can examine the gunite to see if the gunite is damaged or if it is good.

If the gunite/shotcrete has the same pattern, it might be ASR.

ASR - Concrete Cancer - Austin, TX

Has anyone had experience with this issue? Alkali–silica reaction - Wikipedia. 3yr old - fresh water pool with cracks all over the walls Apparently the Shot Crete company (among others here) had not mixed right and messed up a number of pools. Edit by Jim R. thansk

www.troublefreepool.com

 

[Golfer2000]

It might be just in the plaster or maybe in the gunite/shotcrete.

How old is the plaster?

When the plaster is replaced, you should have all of it removed and then you can examine the gunite to see if the gunite is damaged or if it is good.

If the gunite/shotcrete has the same pattern, it might be ASR.

ASR - Concrete Cancer - Austin, TX

Has anyone had experience with this issue? Alkali–silica reaction - Wikipedia. 3yr old - fresh water pool with cracks all over the walls Apparently the Shot Crete company (among others here) had not mixed right and messed up a number of pools. Edit by Jim R. thansk

www.troublefreepool.com

Honestly, I have no idea. I moved into the home and it had a pool already. I have little to no details on the construction methods and age.