Fresh Fill: What Mistakes Can I Avoid?

[ibcj]

Had a CYA >120, and some fine folks here (Marty, et al) suggested I dump and replace, so I did.

Have a fresh fill now, cleaned out the plaster and the filter elements, reloaded DE, and measured out:
FC: 0.2
CC: 1.6
pH: 8.0?
TA: 65
CH: 50
CYA: 0

So I started with about a quart of 14.5% MA, a gallon of 10% chlorine, and 4lbs of “conditioner”. Will remeasure later today.

Any thoughts on what to not screw up and what to do (other than not throwing in 10# of CYA!).

 

[mknauss]

Follow the FC/CYA Levels based on your CYA level you are targeting.

Keep pH in the 7's

Enjoy the pool!!

 

[mknauss]

Also, surprised by your low CH. If that low, you need to add about 200 ppm worth of calcium.

 

[ibcj]

Figured I’d target 40 CYA to start - middle of the range. No idea if that is a good place to start or not. Open to suggestions!

I also thought the CH was low, but had no idea what to expect from LA tap water. I’ll be sure to test it again at least one more time.

 

[mknauss]

In your climate CYA of 40 should be good. May have more FC usage in late summer/early fall when you get your sunny days.