On Sat, 12 Jun 2010 16:01:15 -0700 (PDT), wrote:

lime away is just diluted muriatic acid.it attacks metal if left
exposed too long

Muriatic acid? The pool stuff?

Googling, I see muriatic acid is hydrochloric acid. Sold in standard
concentrations of 31.45% acid and 68.55% inert ingredients, primarily water
(http://www.naturalhandyman.com/iip/infxtra/infmur.html).

I guess it would be cheaper to just grab a bottle of the acid stuff over by
the pool, and dilute and then soak the aerator screens in it.

I'm guessing a 5% or 10% acid solution would be equivalent to lime away
then. Do you think so?