I don't see much point in using both pumps other than having a
backup in case of failure. When mine was a daily driver, I only
drove 3mi each way to work in stop n' go traffic. If I had to run
some errands close by after work, the doors wouldn't have enough air
left to completely raise the door when I got home. Mine took about
30min driving time in this type of traffic to recharge the tank, so
for me I needed ~15min or more of run time per door usage depending
on whether one or both doors were being used. If you spend a lot of
time in creeping/stopped traffic or steady state freeway driving,
then charge times are faster. Mine doesn't have a needle valve and
will leak down in about four days from the door cylinders.
GM
-----Original Message-----
Is it worth the use of 2 pumps ( vacuum and electric) for lots of
air?
>I know nothing of normal operation reguarding door cycles per tank
of
>air so I have nothing to compare. Anyone care to comment?
========================
>From what I understand, the vacuum kit works fine on a
>car that is driven all the time, or even fine on a car with no
leaks.
>If it is not driven that much, then a cheaper electric would also
be
>great. The Whitney (Hadley) product cost 139.00. Also, I recommend
>isolating the air storage tank with a needle valve if the car is
only
>driven occasionaly.
Kim
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