Pink "Stuff"

[PoolDoc]

Lowering the CYA won't help you get rid of the pink algae; you'll still have to run 20+% chlorine level, just readjusted to whatever the new CYA level is.

Lowering phosphates (<0.100 ppm) and raising borates (>60 ppm) will probably help you get rid of the pink algae, and will definitely make it easier to avoid other forms of algae (green, mustard, black). Given that porous marcite is particularly prone to both mustard and black algae, that might be good idea.

Painting? I wouldn't if you can wait for the marcite. Ask your friend how often he repaints pools . . . and make sure you want to get on that treadmill before you do so. Keep in mind that painting makes resurfacing considerably more difficult, since every trace of the paint has to be removed.

[djg9100]

I Apologize for my ignorance but what is this about "borates". How do I test and what is used to adjust? First time I have heard about this. What causes the CYA to get so high, the tablets [trichor-triaz..] or the Power Powder Pro [Cal-hypo-73%]. Thanks again.

[PoolDoc]

Trichlor adds about 6 ppm of CYA for every 10 ppm of chlorine. Cal hypo does NOT add CYA, but does add calcium.

Fill out the form here, and I'll try to work up a plan for you: http://pool9.net/pf-equip-form

You'll need the thread number -- it's 24873

[djg9100]

Form done.