An alternative way to clean horns, which I do once a month, is to take the horn
outside, take all the slides out, using a garden hose with a nozzle, blast
water
through all of the piping and through the slides. It is important to take all
the slides out, otherwise the water pressure may blow them out and dent the
horn. Use as much water flow and water pressure as you can. Each segment of
pipe needs only a couple seconds of flow to blow out the debris.
Other than for the leadpipe and the slides, I don't believe in putting
detergent
in the horn because getting the detergent in the valve/valve casings isn't
likely going to work well and may create a gunk-- you aren't likely going to
get
the detergent to clean around the rotors and get it back out by rinsing with
any
success. Clean the rotors (when left in the casings) by using ultra pure
kerosene.
By cleaning the horn as described, the tubing will be left with a light coating
of oil, as the pressurized water doesn't remove the light coating of oil, but
the gunk will be blown out.
I live in San Diego and can do this all year, but those of you in colder
climates may need to use warm water and avoid cold weather.
Regards,
Larry
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