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Old 05-12-2015, 01:51 PM   #1
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Clean blacktank spray system heads.

How much pressure can the system handle? I'm trying to blow out the sprayhead, without damaging anything.
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Old 05-12-2015, 06:48 PM   #2
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When I winterize our camper I set the compressor to 30 PSI to blow out any water in the black tank flush.
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Old 05-13-2015, 01:28 PM   #3
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I pushed it up to 60 psi before I chickened out, still didn't clear the spray head.'
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Old 05-13-2015, 01:34 PM   #4
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Quote:
Originally Posted by kickbrick View Post
I pushed it up to 60 psi before I chickened out, still didn't clear the spray head.'
If you can get to it you should try the blow out at the output side tube from your backflow preventer by disconnecting and blowing in that port unless that's where you have already tried.
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Old 05-13-2015, 01:41 PM   #5
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I pushed it up to 60 psi before I chickened out, still didn't clear the spray head.'
How do you know it's plugged?
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Old 05-15-2015, 08:15 PM   #6
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No water goes into the black tank when I hook up to the flush inlet. It does get past the backflow preventer. I took that apart and got water coming out there.
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