Water balance base line

[Matthew Spencer]

I’m aware of the tolerance either side of 0.5 regarding the water balance (langelier index)

I’m I right to take a base line water balance from the mains water and then aim to keep the pool water within the 0.5 +/- tolerance of the mains?

I’m getting a water balance reading of – 1.08

Also is there documentation that tells me the corrective actions (or is it a case of refreshing the water?

[Stockwell Safety]

Hi Matthew,
No need to test mains water balance – it’s the pool water we’re concerned with. You’re aiming to keep within +/- 0.5 of zero as it relates to the pool water – the mains water is not tested or relevant to the +/- 0.5 tolerance.

All corrective actions are contained within the course content. Keep the pH optimised for chlorine effectiveness, adjust calcium hardness and/or total alkalinity if they are outside of 80 – 200, keep the TDS as low as you possibly can.

[Author]

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