On Sat, 16 May 2009 16:09:40 -0500, The Daring Dufas
wrote:

Prof Wonmug wrote:
I bought a large inflatable water slide for use by the pool:

http://www.amazon.com/Intex-58851-Wa.../dp/B000NN9DUC

This is a pretty cool slide. It appears to be very well made. The
material (vinyl?) is very heavy.

But I was not prepared for the setup and, especially, the take-down
time. It took me well over half an hour to inflate the slide using a
small portable compressor.

I am now trying to deflate it and not having a lot of success. If
anyone has a better way, I'd love to hear about it.

The large chambers (there are 4) have what the manufacturer calls a
Boston Valve.

http://tinyurl.com/qwsott

This is a 2-part valve. The cap opens a one-way valve that lets air in
but not out. There is another "nut" that removes the valve entirely
leaving an unobstructed opening about 3/4" wide. I opened all 4 Boston
valves. The large chambers deflated about 90% in a few minutes. That
last 10% is not going well.

With an air mattress, I would just roll it up from one end and force
the air out. This thing is too complicated and too heavy for that.

The small chambers (also 4) have the standard plug valve with a flap
to keep most of the air from escaping. This is fine for inflating, but
difficult for deflating. I have to stick something into the valve to
hold the flap open.

I tried using the vacuum cleaner. It works reasonably well on the
large chambers with the Boston valves, but not so well with the
smaller valves. I don't have anything that I can use to prop the valve
flap open that won't either block the opening or get sucked up by the
vacuum cleaner.

I see that Amazon has a bunch of "inflator/deflator" gizmos. Most of
them have no reviews. Doesd anyone know if any of these are any good?
That is, better than the vacuum cleaner?

Here are a few:



Rave Sports Hi-Speed Inflator. Reviewers say it is fast and powerful,
but runs hot and may not be able to inflate more than one large item.

http://tinyurl.com/qqut6j



Sevylor 110 Volt Mini Inflator/Deflator. $18. I can't tell if it comes
with a hose.

http://tinyurl.com/pm4ok9



Metro Vacuum 110-IDAR 110-Volt Magc Air Inflator/Deflator. $50. This
looks like the right tool if it works.

http://tinyurl.com/q4jtvr




Marine inflater/deflator. $73. This is 12V only, so not convenient for
backyard use.

http://tinyurl.com/o7jcy9




Black & Decker makes an inflater, which I thought about buying, but I
don't think it can deflate.

http://tinyurl.com/pvqjnc

Did you consider using a shop vacuum?

Not until you suggested it. The shop vac is the right tool for the
job.

Before I saw your message, I used a compressor. It works, of course,
but I only have a small 2 gallon tank so it ran continuously. This is
not good for the compressor and several neighbors are probably still
mad. But the worst part was the deflating. I ended up using the house
vacuum cleaner, but the nozzle was the wrong size.

I picked up a $30 shop vac from the Borg with a set of nozzles. It was
just as fast as the compressor for inflating and much less noisy. and
deflating was much easier.

Thanks. Have a virtual beer on me. ;-)