Is this mustard algae?

[oking64]

Can anyone advise on whether this is mustard algae? Even with vigorous brushing I’m having trouble getting it all to come off.

 

[mknauss]

Looks more like staining.
See Stains in Your Pool

 

[oking64]

My copper and iron levels always test fine - so you think just debris/pollen?

 

[proavia]

My copper and iron levels always test fine - so you think just debris/pollen?

Difficult to know without being there.
Post a full set of current test results from one of the recommended testkits.
Test Kits Compared

FC
CC
pH
TA
CH
CYA
Salt (if using a SWG)
Water temperature

 

[PoolStored]

This may help you..

Stains in Your Pool

The stained pool is beyond embarrassing. Our in-depth Guide to remove stains in your pool will help you to remove the stains and prevent them in the future.

www.troublefreepool.com

 

[oking64]

Difficult to know without being there.
Post a full set of current test results from one of the recommended testkits.
Test Kits Compared

FC 5.0
CC 5.0
pH 7.8
TA 85
CH 200
CYA 30
Salt (if using a SWG) n/a
Water temperature 80

 

[PoolStored]

Are you sure you mean CC is 5.0? Or did you mean TC?

 

[oking64]

Are you sure you mean CC is 5.0? Or did you mean TC?

Yes sorry total chlorine 5.0

 

[PoolStored]

WHEW!

What are you testing with, TA of 85 looks more like pool store test.

 

[oking64]

Yea it’s a water test from Leslie’s pool supplies

 

[PoolStored]

Yea it’s a water test from Leslie’s pool supplies

Before we help, we need results from your tests. Pool testing is notoriously wrong and we could do more harm with advice from PS tests.

Get a recommended test kit and report back. Link-->Test Kits Compared

 

[alvindo]

Before we help, we need results from your tests. Pool testing is notoriously wrong and we could do more harm with advice from PS tests.

Get a recommended test kit and report back. Link-->Test Kits Compared

I agree about getting a test kit. I got the tf pro salt kit before our pool was finished back in May. Our pool was finished on 6/8 and within a few days we had crystal clear water. At first it was a little daunting. But I started with the comparator block test for chlorine and PH. Then every couple of days I would add a test to my repertoire. I can now do all of them in about 15 minutes from memory. A friend asked me how much I liked I spending on Pool chemicals, and I was able to say I barely spend any money on chemicals. I spent upfront for the SwG, muriatic acid is cheap, and so is baking soda. So far that’s all I’ve had to buy except for the ten gallons of bleach. I used five to get it open and kept five if I ever have to slam. The test kit will pay for itself and keep you out of the pool store.