Quote Originally Posted by dennistoner View Post
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FC .5
TAC 1
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CYA 100
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You've got trouble brewin'
You need alot more chlorine for that CYA level (which actually may be much higher). At least 8ppm FC according to Ben's Best Guess Chart.
How does your water look?
Do you have metals in the water?

If your water has no metals and is clear, you'll need about 4-1/2 gallons of 6% bleach to get to the minimum 8ppm FC for CYA of 100ppm.

If your water has no metals and is green, you'll need 14-15 gallons of 6% to reach your shock level of 25ppm FC.

These amounts are only to get you to your required levels, you'll need more for maintenance.

Alot of people on this forum find a good deal on bleach at wall mart. If the store in your area has the HTH 6-way kit, buy one. (Check availability) If not, pick up a cheap OTO / Phenol Red test kit.

If you have metals, check back and let us know.

Getting a Taylor test kit tonight...
You do mean ordering a K-2006? With High CYA, the FAS-DPD test is essential for taking care of your pool.