Within the Red Hat certification program, the RHCA is considered the most complete (and grueling) certification among the seven major Red Hat certifications. In fact, some equate the prestige of the RHCA to that of the Microsoft Certified Master and possibly the CCIE.
A plumbing fixture like a sink can not function properly without a sink vent. When a drain pipe drains it creates a negative pressure in the sink drain; the negative pressure will pull the water out of the p-trap of the sink that's draining and sewer gases can enter your home if a sink vent is not installed.
Best Answer: air gaps are not required if you loop your drain hose to the uppermost point in cabinet and secure it. this keeps the top of the loop above the flood rim. the drain should be connected to the disposal, however if you delete it you need a branch tailpiece and can connect drain there. Source(s): exp. plumber.est Answer: air gaps are not required if you loop your drain hose to the uppermost point in cabinet and secure it. this keeps the top of the loop above the flood rim. the drain should be connected to the disposal, however if you delete it you need a branch tailpiece and can connect drain there. Source(s): exp. plumber.