generic SWG question

[Sodium Chloride]

I had a 4 mo old IC-40 replaced under warranty. It was set to output at 75%. The filter was running 8hrs/ day during the spring mos (Feb-May). My FC was always at 3 until the SWG failed.
After replacement, using the same settings my FC jumped to 7. I'm now running my filter 6hrs/day(3 wks)and the SWG is set for 55% output (1 wk). My FC is around 5. I have a smaller IG pool approx 12-15 gal including the spa. The first SWG needed to be at 75% to maintain my chlorine level. The second is down to 55% output and is still producing more chlorine than the first.

Is this a sign that the first SWG was defective from the beginning?

If anyone wants to do the math; my pool is 13x26 free form with avg depth of 5ft

Thanks Guys

 

[mknauss]

I had a 4 mo old IC-40 replaced under warranty.

Why was it replaced?

 

[Sodium Chloride]

Why was it replaced?

It stopped producing chlorine. The inspect cell light kept flashing even after acid bath. The Pentair rep came out and also tested it, and it was defective.
Thanks

 

[mguzzy]

Is this a sign that the first SWG was defective from the beginning?

Sounds like it... you should be able to figure out how much FC your SWG will put out using PoolMath for your runtime. Unless you are battling algae too it should be pretty close.