Greenish Crystals in Pool

[DMD]

I have a SWG and recently noticed some greensih salt crystals forming in one corner of the pool with some silt. Any idea what could be causing this? My Salt reading is also lower that it has been over the past months.

 

[duraleigh]

My first reaction would be to clean them out and see if they reappear.

 

[DMD]

I have and they came back. They are also in the pool skimmer net. It looks sort of like pool salt, but I can't imagine that the salt would be reforming.

 

[Poolsean]

Do you have a heater or copper pipes?

 

[DMD]

Do you have a heater or copper pipes?

No, I don't.

 

[Melt In The Sun]

Can you post a picture of them?

 

[257WbyMag]

Have you considered having a pool store run a test for the presence of metals in the water? I would specifically be interested to know if there is copper in there and if so, in what quantities.

Can you post a set of test results as well?

 

[Butterfly]

Have you added any copper based algaecides or anything that contains copper?

A full set of test results would be helpful.

 

[DMD]

Can you post a picture of them?

Here are some pictures. It sort of looks like undissolved salt, but I can't imagine why that would be the case. I'm going to have Leslies run a test this weekend.

 

[Poolsean]

not sure what this is. Wind blown debris ending up in your pool? Sand from Paver stone deck? Did you use Bacquacil/bagunide based chemicals previously? Is it clumped together bacause it's wet or is it slimy?

 

[DMD]

not sure what this is. Wind blown debris ending up in your pool? Sand from Paver stone deck? Did you use Bacquacil/bagunide based chemicals previously?

No.

Is it clumped together bacause it's wet or is it slimy?

It's clumped together because it's wet. It's not slimy. I've also found this stuff in the skimmer net.

 

[benavidescj]

Are you close to the Gulf of Mexico?

Ok, i am sorry, could not resist.