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Old 01 May 2012, 07:49   #11
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3 Way Adaptor

I have a Honwave T35 alu deck and the engineer in me has always thought that an adaptor which splits your pump output into 3 connectors would be a good idea (with long enough pipework to reach all).

You could then connect all 3 main chambers and inflate all together - they will be perfectly balanced during inflation and at completion.

Regards,

Dominic
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Old 01 May 2012, 07:57   #12
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Quote:
Originally Posted by dominic_baker
I have a Honwave T35 alu deck and the engineer in me has always thought that an adaptor which splits your pump output into 3 connectors would be a good idea (with long enough pipework to reach all).

You could then connect all 3 main chambers and inflate all together - they will be perfectly balanced during inflation and at completion.

Regards,

Dominic
Good idea, let me know if you manufacture something.
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Old 01 May 2012, 09:11   #13
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Originally Posted by captnjack View Post
Build quality must not be that high on those UK boats
haha , made me smile i can`t see your hse being anywhere near as anal as a british one
though i always inflate my shanghai special 3/4 then top each chamber up
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Old 01 May 2012, 10:21   #14
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It doesn't matter, the baffles between chambers can take full inflation pressure.
Or you can do what the Bombard manual advise -which is take them all up to 3/4 ish pressure and then go round and top off.....
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Old 01 May 2012, 11:08   #15
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Quote:
Originally Posted by dominic_baker View Post
I have a Honwave T35 alu deck and the engineer in me has always thought that an adaptor which splits your pump output into 3 connectors would be a good idea (with long enough pipework to reach all).

You could then connect all 3 main chambers and inflate all together - they will be perfectly balanced during inflation and at completion.

Regards,

Dominic
This does not work. I tried it and you will preferentially inflate one chamber possibly overpressurizing it. The valves don't all open at exactly the same pressure, there's flow losses in the shorter tubes and a bunch of other factors which conspire against it being simple.
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Old 01 May 2012, 11:10   #16
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Or you can do what the Bombard manual advise -which is take them all up to 3/4 ish pressure and then go round and top off.....
Well I never deflate mine anyway, so they are all basically round before I start. Where the baffle is I don't worry about, for all I know it could be 99% towards one chamber vs another.
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Old 01 May 2012, 15:57   #17
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Don't forget some boats need a sequence starting at the bow and working back otherwise on some makes the baffles can be reversed and cause stress problems some times causing a waist on the sponson/tube.
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Old 01 May 2012, 16:13   #18
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I onece pumped my Aerotec with my bravo pump to the same pressure as the floor didn't do any damage & I do not set the boat up after the pub any more
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Old 01 May 2012, 16:15   #19
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As Peterm says.....In most Tube manuals it will clearly state they should not be fully inflated individually. Dek i would gradually do it...as all decent manufacturers would indicate that. its also in your handbook
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Old 03 May 2012, 11:02   #20
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When a chamber deflates, the near inflated chamber baffle protudes into the deflated chamber. Thus, the pressure in the inflated chamber GOES DOWN because the volume expands.

In the opposite: if you inflate a chamber to the correct pressure, but not the near chamber, the inflated chamber baflle protudes.
So when you inflate the near chamber, the baffle will go back - INCREASING THE PRESSURE OF THE CHAMBER.

That is exactly the mechanism that explains how to get a third family jewel with a hernia.
How disgusting.
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