What's next for spot 'etching' studies?(Letters)(Letter to the Editor)

From: Pool & Spa News | Date: November 1, 2004| Author: Hales, Que; Latta, Doug; Skinner, Kim | Copyright information

Re: News story in Sept. 3 issue, titled "New Spot Etching Study Released"

We congratulate the National Plasters Council for its efforts in conducting its own study on etching deterioration and confirming all previous studies--that aggressive water does, indeed, cause deterioration of pool plaster.

However, the NPC also appears to have unintentionally proven our studies--that spot "etching," which, as has been proven, is not etching at all, can occur even in b...

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