new plaster streaked - is this how it is with plaster

The standard regarding temperature is that the ambient temperature is to be above 40 degrees F and the temperature of the substrate should be above 32 degrees F.
Issue lingers on... No responses as yet from plaster people.
On review of my diary, temp out there was 31 degrees before fill completed. Does not change conclusions but is interesting.
 
I have a color similar to you (Wet Edge sapphire treasure) and I had a lot of “White” on my walls around the pool after installation. They weren’t streaks more like layers. I showed the company that installs Wet Edge in HOUSTON (Pool works) and they assured me it was normal. I was skeptical. I discontinued using the Orenda because it was sucking my free chlorine to zero (duplicated this three times). I switched to Jacks Purple stuff for SWG (not saying this was the solution and this is the only product I use that is not recommended by TFP) and I also physically went in with a piece of sandpaper and sanded this white stuff off by hand. it was not scale, that I’m sure off. It came off easily and it was powdered. Anyways this was very early on after installation. I also noticed my PB had left the CH out of range of what TFP recommends (not to mention other water chem levels for SWG) so I naturally raised that to 400. Now I have very little/no white “streaking” in my pool. I still personally have a hunch saltwater pools affect the platter differently than chlorine pools.

As a note my pool was plastered in March with temp in the 60’s
 
Hi
So now plaster contractor says will do acid treatment to minimize streaking. Have read lotsa bad stuff about acid treatments.
So
Would it be better to accept as is and skip the acid treatment?
 
Hi
So now plaster contractor says will do acid treatment to minimize streaking. Have read lotsa bad stuff about acid treatments.
So
Would it be better to accept as is and skip the acid treatment?

Depends how badly the streaks bother you. They are just cosmetic.

Acid washing takes off a thin layer of plaster and can shorten the life of your plaster.
 
If you do a no-drain acid wash, be sure your heater is bypassed. The acidic water going through it will damage it.
 
I think he was not discussing acid wash (ie draining, etc). Rather making the water acidic for a time.

And that acidic water will etch the plaster and take off a thin layer.

Make sure your heater is bypassed and your water pH is back to normal before you have water flowing through it.
 
oh my, am over my head

I see no way to divert water away from the heat exchanger

and how could one adjust pH without circulation
just dump acid in and wait
then later dump ?bicarb in and wait

thanks for the advice; is extremely helpful

big meeting is tomorrow about noon
 

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They should turn off your pumps and plug your return lines and skimmer. They dump acid in your water and setup pumps to churn the water around. Afterwards they need to raise the pH before they take the plugs out and turn on your pump.
 
outcome?
Gonna leave as is. Why?
1) is better than before
2) some people actually appreciate the variegated color
3) no drain acid and sanding/grinding would actually remove some plaster
4) and finally, it is time to move on

thanks for all advice
 
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Thank you for the follow up! Would you head over to our plaster color thread and share some pics of your plaster please. One looking down at the steps and one looking at the deep end. These show the how the color looks at different depths.

Pool Finish and Color Viewing Room...TFP Member Sound Off

Make sure to note kind of plaster, the color and any extras you added.

THANKS! Kim:kim:
 
One thing I forgot to mention. When the temperature is cold while plastering, then the plaster should be allowed to dry and harden for greater amount of time than just a few hours. Otherwise, the plaster surface will not be ready to withstand being submerged in water and will dissolve some of the plaster material away when submerged. That will simply make the plaster surface more porous and more prone to staining and discoloration.
 
One thing I forgot to mention. When the temperature is cold while plastering, then the plaster should be allowed to dry and harden for greater amount of time than just a few hours. Otherwise, the plaster surface will not be ready to withstand being submerged in water and will dissolve some of the plaster material away when submerged. That will simply make the plaster surface more porous and more prone to staining and discoloration.

Is complicated.

Contractor did wait some time to start fill but I don't know exactly how long, say x hours. Then took about 38 hours to fill. So plaster near the deep drain had x hours to dry and plaster near the water line tile had about 38 hours to dry.

When next swimming will need to feel of the plaster at various depths. Maybe need a scuba guy to do that. Or send grandkids down to do that. :geek:
 
Yes, you are correct. The white streaks on the plaster walls are not caused by early filling with water.
The white streaks are caused by applying excessive water while troweling. Those white streak areas are simply more porous than the dark color areas which are very dense.
The plaster surface will probably be smooth in both the white streaked (and spotted) areas and the dark color areas. And that is because the white areas are simply porous (as stated above), and not etched and pitted which is what acid treatments and aggressive water does to the plaster surface.
 
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Good morning and thank you

Nice morning out here to think about streaks (pic below). Clear and crisp.

Pic #1 normal but #2 and #3 not normal?
Since streaks were present before water hit the affected plaster in pic #2, then I wonder if the cold ambient temps out here played a role. Temps were low 34 high 48 during plaster and fill. And pool gets no sun in mid-November.

Improvement after 8 days?
Today is post fill day 9 so then too early to know.

View attachment 88579
Funny how these plaster companies work. I have the same "trowel marks" and was told that the hot weather was a contributing factor. Was given the option of draining and starting over or live with it.
 

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