Date: Sat, 29 Nov 1997 20:45:54 -0800 - From: patrick <pat123 at net-quest_com> - Subject: Solenoid buzzing - - I have a Dupla magnetic valve....the solenoid part of it starts to - buzz loudly when it turn on (via the PH controller)...any - suggestions? When I hit the solenoid part It tends to quiet down but - then gets loud once again....Please help....Ive checked all the fitings - and they are tight.... - dirk It may be a problem with your mount. I used to have the same problem but now I have just let the wires support it rather than screwing it to a serface. You may be able to mount it on rubber bands or something it may help. I am not sure if it will work on your Dupla model but it seems to work on my $10 unit.. Bryan
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