Salinity: CircuPool & Taylor discrepancy

[P00LNerd]

16 drops picture is what it looks like but Ive never see that 15 drop picture before. Its always a sudden and dramatic switch from picture 14 to 16. Id be curious what picture 15 looks like as it continues to mix.

That was after several seconds, and it appeared stable, but next time I'll let it go much longer and see what happens.

One time, I left the red brick mix sit and stir while I went ahead and did my chlorine addition. When I finally got around to emptying and washing the tube, I had a heck of a time getting it clean. That stuff seems to almost plate onto the inside of the tube, if left any amount of time.

 

[PoolStored]

heck of a time getting it clean

Rubbing alcohol, or bleach water.

 

[HermanTX]

Okay guys, had a quick chance to re-test and photograph this morning. The photos start at 14 drops and conclude at 17 drops.

View attachment 598726 View attachment 598725 View attachment 598724 View attachment 598723

Severity of color change at 15 drops varies, as "drops" is not exactly a precision measurement, yesterday it was noticeably lighter than this. But full "red brick" did not occur until 16 drops.

I always wait till it looks like the 3rd picture - so 16 for me.
I do sometimes have a slight discoloration as shown on drop 15 and I let it stir an extra couple of seconds to see if it turns darker. If not I add that next drop to look like 16 and call it done. So 3200 ppm

 

[Homebrewale]

Personally, I would add one 40 lb bag of salt. Using PoolMath for your size pool, it would increase salt by 319 ppm. So if its 2900 ppm by salt system, 3100 ppm (15.5 drops) or 3200 (16 drops), the salt addition will put your salinity at around 3500 ppm which is the middle of the SWG range. For me, that covers the heavy rain periods where I need to drain some water from the pool. I prefer not to operate at the edge of the range. Similar to FC. I could operate at FC of 4 ppm but I chose to keep it at the 6-8 ppm range.

 

[P00LNerd]

Personally, I would add one 40 lb bag of salt. Using PoolMath for your size pool, it would increase salt by 319 ppm. So if its 2900 ppm by salt system, 3100 ppm (15.5 drops) or 3200 (16 drops), the salt addition will put your salinity at around 3500 ppm which is the middle of the SWG range. For me, that covers the heavy rain periods where I need to drain some water from the pool. I prefer not to operate at the edge of the range. Similar to FC. I could operate at FC of 4 ppm but I chose to keep it at the 6-8 ppm range.

Agreed. My kids have just gotten used to whatever salt I have in there now, whether that be 2900 or 3200 ppm. I may give it another few days of use, so I'm sure it's completely out-of-mind, and then sneak another 40 lb. in there.