Main drain sprinkler squad ops 5 6 09
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5:51
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which is called residual water pressure.....having that drain open wouldn"t set the electric gongs off....no water motor on that system they are outdated disconnected
pete5521 10 months ago
@paul9511
well there inside and the bell would be outside. and whos to say the bell is a water powered, an not electric?
JohnJohnTerrazas 11 months ago
Why the water motor bell did not go off?
paul9511 1 year ago