Bottled water is filtered tap water and often is enhanced
with "minerals for taste" or spring water which also has
minerals.

Distilled water has been BOILED and the steam condensed, it
is as pure as chemically possible. Less than a dollar a
gallon. A gallon will keep the battery in your car and
plane filled for about 25 years. Use a basting syringe to
add distilled water, an ounce at a time, six cells. If the
electrolyte level is low in all cells that means that it is
working evenly, but if just one or two cells are low, there
is likely to be a problem developing.

FAR preventative maintenance does allow the pilot to check
electrolyte levels and add water, also use a hydrometer to
check specific gravity to see that the battery is fully
charging. That combined with a voltage check to be sure
that the system is not charging at too high a voltage is the
most important things a pilot/owner can do to get maximum
life.

But all batteries wear out because lead flakes off the
plates and collects in the bottom of a standard lead/acid
battery [that's why the plates do not extend all the way to
the bottom of the case, the space is there to collect lead
sludge. When the sludge touches the plates they short out
and the cell is dead.]


--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Newps" wrote in message
...
|
|
| Jim Macklin wrote:
|
| Distilled water is cheap and can even be drunk in an
| emergency.
|
| Well sure, that's essentially what bottled water is
anyways.