Scrub Harder?

[dash]

View attachment 75960

I’ve gotten my pool out of
winter mode and it’s ready
for summer. Here in AZ it’s
been 100 degrees and my
balance is cool ?

I have some weird stains
in some corners and areas
of my pool. I’ve slammed
the pool a couple weeks
ago and that did nothing to
the stains. Am I not scrubbing
hard enough or is something
else going on? Thanks!

 

[woodyp]

Do you know the iron content of your water?

 

[dash]

the iron content?!?

I don't know that level. could I test that from something in the TF kit?

my city website says, iron is <0.05 ppm

Current Readings:
FC 1, CH 550, TA 120, CYA 20

 

[pooldv]

Give some of these things a try.
Pool School - Stains in your Pool