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Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 8:59 am
by imperialbari
I tend to think that water collected later in the main bugle mostly is condensation. Water collected earlier in the routing more likely is spit.
Why does the water coming from the leadpipe to such high degree go to the 2nd slide rather than to the 1st slide, which often has a water key (as opposed to the 2nd slide that must be drained by pulling it).
Same problem on euph, F tuba, and Eb tuba.
Klaus
Re: Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 10:07 am
by elihellsten
I also wonder why this always happens. Although it is not much of a hazzle to pull the short second slide and empty it (IMO faster than using a spit valve and blowing through the horn) it is sometimes unpractical.
Re: Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 10:29 am
by Rick F
Hmm? Could it be that since the 2nd slide is so short the quick turn has more chance to grab more moisture from the air?
Re: Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 12:18 pm
by Dan Schultz
If you are spitting into your horn... something is wrong with your chops!
The reason why there is condensation also in the early parts of the horn is because the air you are introducing into the horn is the warmest and moistest (98.6 degrees and 100% humidity) just as it enters the leadpipe. Condensation begins as soon as the air enters the leadpipe and diminishes almost completely by the time it gets to the main tuning slide. Of course... it's most obvious at the main slide because that where condensation (and maybe a LITTLE spit) eventually runs to.
Re: Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 3:03 pm
by jeopardymaster
That's where it collects in my 983 as well. Less to do with top action than with compensating system maybe?
Re: Why most water in 2nd slide on top valve compers?
Posted: Wed Jan 23, 2013 6:23 pm
by MikeW
Depends on the instrument. My old Cuesnon Eb has a long mouthpipe with tuning slide and spit valve, which condenses out most of the water. I seldom have to empty the valve slides, and very rarely need to spin the instrument to stop the main bugle gurgling.
My Imperial EEb (virtually a 981) usually stays playable if I just blow out the spit valves on #1 and #4, but occasionally I have to empty the #2 slide, which often means it's also time to empty the tuning slide and compensating loops , and occasionally the #3 slide. I'm fairly sure the #2 slide doesn't collect more water than #1, it's just that having to pull out the slide is more noticeable than just opening the spit valve.