Salt Levels

[Poolsean]

Calibration solution is really to verify that our testing method is accurate. The Taylor is probably the best readily available kit, but is a little TOO accurate for us salt people. We're just looking for continuity. Even if this is as a result of sulfates or TA or CYA, those usually don't add up enough to interfere with the salt reading.

Regarding Richards assumption with CYA and corrosion, there is evidence that even with indoor pools, CYA helps to prevent corrosion with as little as 15 ppm.

[chem geek]

Calibration solution is really to verify that our testing method is accurate. The Taylor is probably the best readily available kit, but is a little TOO accurate for us salt people. We're just looking for continuity. Even if this is as a result of sulfates or TA or CYA, those usually don't add up enough to interfere with the salt reading.

Regarding Richards assumption with CYA and corrosion, there is evidence that even with indoor pools, CYA helps to prevent corrosion with as little as 15 ppm.

Sean,

Really? That's very interesting news about corrosion and yet one more reason why CYA should be used (in small amounts) in indoor pools. It also helps slow down disinfection by-product (DPB) production and reduces degradation and fading of swimsuits (as my wife will attest to). Thanks for the additional information. When you get a chance, I'd like you to bring your perspective into The China Shop thread I created on the salt water corrosion issue. It sounds like there's going to be multiple "additive" sources involved and probably simple solutions that will require education (especially to pool builders).

Richard

[DONNIE]

Retested salt to verify ppm @3400 and recalibrated my PoolPilot. Everything is perfect now. Sean, reading all of your previous posts regarding the PoolPilot and the advice you have given me reassures me that I definitly made the right purchase. Thanks to you and all the others who have helped me. I have a firm grasp on water chemistry and I also have a sparkling crystal clear pool!

Donnie