Saturday, 19 December 2020

Mustard Algea or just dirt/pollen!

Hey all,

First post on this great website. I have been a covert to the TFP system but I have this ongoing problem (or maybe it isn’t one).
I have a small (30k litre) fibreglass SWC pool in Sydney Australia and I keep getting deposits in the bottom of the pool that looks brown and puff away when touched (see attached photos).
I did an overnight loss test and FC dropped less that 1.
Other stats:
FC 6 (I am letting it drift to 3 as per SWC recommendations)
PH 7.6
TA 75
CH 350
CYA 70
BOR 23...

Mustard Algea or just dirt/pollen!


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