Air gap for dishwasher turns into "Old Faithful"

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Old 10-21-12, 03:17 PM
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Air gap for dishwasher turns into "Old Faithful"

We have an air gap issue. When the diswasher drains, the air gap leaks copious amounts of water. When the top is removed from the air gap, water shoots 6-7 inches in the air. I have removed the air gap (totally clear), checked both lines (from diswasher to air gap and from air gap to disposal) and they are clear. Line from air gap to disposal has nice downward slope.

It appears the problem is the dishwasher, in that it is pumping out the water way too rapidly. I have never heard of this before, but is this possible?

Thanks in advance.
 
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Old 10-21-12, 03:50 PM
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Is this a new installation? If yes, are you certain you connected the hoses correctly? The larger hose goes to the garbage disposal or drain. Did you completely knock out the plug in the garbage disposal?
 
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Old 10-21-12, 05:44 PM
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No. We have been here since 2004 with no issues. The house was built in 1998.
 
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Old 10-21-12, 06:18 PM
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No....the water pump in the dishwater can't pump water faster then it was designed. From what I've seen the likeliest culprit is the disposer. Something blocking the water from draining into it.
 
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Old 10-21-12, 06:21 PM
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Got it. It was the line from the air gap to the garbage disposal. I thought it was clear because I could easily blow air through it. After removing and inspecting it, it was clogged with gook. I cleaned it out and all is good. Thanks!
 
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Old 10-01-13, 12:15 PM
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intermittent flooding of air gap after years of working

I could not figure out why, suddenly my airgap was flooding at times during my DW empty cycle. It was fine for years with the same DW and GD. Read a post on another thread about the 7/8" hose looping too low. Then I remembered that after a new countertop, the plumber installed a new 7/8" hose. It was too long. That was the change that I'd missed. I cut 6" off the hose and reinstalled it so that there was no dip in the loop and Voila! the problem disappeared. Thanks for the blog information.
 
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Old 10-01-13, 02:12 PM
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Welcome to the forums.

You also could have refastened the hose up higher instead of cutting it.
 
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