Cloud-24 wrote:Problem: Very Cloudy Pool Water after Pool Opening / Green Algae Issue
FC: 1 ppm
TC: 1 ppm
TA: 160 ppm
CH: 100 ppm
CYA: 125 ppm
My pool: NAMCO, 24' Aboveground
Pool chemicals: Chlorine, fed by auto-chlorinator
My pump & filter: Proline 1.5hp Cartridge Filter, Normal operating pressure 14 psi
Other info: Upon opening pool, water was dark and approximately 1 inch of algae was discovered on bottom of pool. Pool was treated with algaecide and shocked. After a few days, green algae disappeared and was replaced with very cloudy water (less than 1 foot of visibility down into water). Treated with clarifier, little to no effect after 5 days. Treated with SuperFloc, some affect as cloudiness settled down about 1.5ft. Attempted to vaccum, no effect. Filter cartridge was checked and found to be very clogged and was replaced. Pool was then treated (twice over four day period) with Natural Chemicals PoolAid, slight change in pool clarity around perimeter (can see approximately 75% way down wall of pool), however majority of pool (more than 1 foot away from wall) is still extremely cloudy.
New cartridge is still in very good condition, chemical levels are within tolerances, give or take routine daily maintenance. Ready to give up and partially drain pool at this point, as none of the treatments seem to have any truly noticeable affect. Pool is being filtered at least 12 hours per day. Any advice most appreciated.
If your CYA is really 125 (most kits measure only to 100) then your chlorine level would need to be much higher to keep algae away and clear the pool. Hopefully chemgeek will stop by and give you some solid numbers. Draining some of the water from the pool will lower your CYA level which is what you want.
Is the autochlorinator using trichlor tabs. If so, that is where your high CYA level came from.