I need to install an air gap for a dishwasher in an older house where the cast iron sink has no extra holes. I have been told that it needs to be installed on the counter next to the sink. Is there a special air gap or device that will direct the water into the sink and not on the counter when the air gap spits or discharges? I have asked at several stores and no one seems to know of such a device. I can't be the only one faced with this problem.
Air gaps are required at the flood level rim. To get away with not drilling an extra hole, just use a cheater vent. Keep the cheater vent above the trap and you should be able to get away with that.
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