You're absolutely right. Don't know what I was thinking... Been retired
too long.:-)
That'll help the calculation a lot.
Paul
"Ted Byers" wrote in message
.. .

"Paul Simon" wrote in message
...
It's easy to get ppm from your info. 1 grain (gr.) with a lower case
"g"
is
65 milligrams (mg.) and a gallon is about a litre. 1 grain per gallon
is

Not quite. A quart is about a litre, so a gallon is about 4 litres. But
this depends on which gallon you're using. I can recall the imperial
gallon
used many many years ago in Canada was a little larger than the gallon
used
in the US. John Talpa has given what look like the correct values for use
in the US.

Cheers,

Ted