Gunite shell

[dphanes]

We had our gunite shell shot about a week ago and there are some significant color variations. What causes part of the shell to be a much lighter white color and other areas darker gray?

thanks

 

[YippeeSkippy]

Nice looking pool! I would imagine moisture plays a part in that- are you wetting it down daily? Have they advised you to do that? Gunite by the way is not waterproof. That will come from your plaster finish.

Maddie

 

[dphanes]

I am wetting it down. Wasn’t sure if the different colors were due to different water/cement ratios and if so is lighter concrete a higher or lower ratio

 

[YippeeSkippy]

Well lets ask someone who does this kinda of work- <paging @JamesW ....paging James.... consult needed stat> lol

Both areas you see as dark, I see as in the shade and against dirt which lets moisture remain close. But James will know if it is something else. Hopefully it isn't rebound or something....

Maddie

 

[YippeeSkippy]

Have you read this-

https://www.troublefreepool.com/blog/2019/01/18/ten-guidelines-for-quality-pool-plaster/

 

[dphanes]

Have you read this-

https://www.troublefreepool.com/blog/2019/01/18/ten-guidelines-for-quality-pool-plaster/

Link doesn’t seem to be valid.

 

[YippeeSkippy]

www.troublefreepool.com/blog/2019/01/18/ten-guidelines-for-quality-pool-plaster/

Odd, it just worked for me?

 

[dphanes]

www.troublefreepool.com/blog/2019/01/18/ten-guidelines-for-quality-pool-plaster/

Odd, it just worked for me?

Found it with a google search. Thanks. Interested to see other thoughts

 

[jimmythegreek]

If its evenly dry the darker grey is richer in Portland. Looks like dampness is the color changer in your shell mainly. Looks like a nice shaping job to me

 

[dphanes]

Is there an impact if it is “richer in Portland”?

thanks

 

[dphanes]

Is there an impact if it is “richer in Portland”?

thanks

 

[dphanes]

Thx

 

[Whiskeyfox]

Mine is multicolored too

 

[jimmythegreek]

No impact just a little stronger concrete. It's all spec mix sometimes it can be richer in areas nothing to worry about it's better actually