Each elbow is equal to 5'. So you are saying that the 90,000 can vent up to a total (one one leg) of 74'?
Originally Posted by SJProwler
Sorry, it's actually page 15 of the manual and the lowest the chart goes is 1 elbow and it states on the 90k that you can go 69' so in answer to your question.. YES!
Originally Posted by George2
As stated earlier the drain should be exiting the right side. If the trap is clear of obstructions this will take care of all your problems.