Moving a vent/stack pipe
Where &quot;just&quot; involves maintaining appropriate slope and position, yes. It appears that you have two vents joining &quot;more than 6&quot; above the flood rim of the highest fixture on the floor&quot; and you have to respect that - you cannot make the two vents one (nor run them at less than 45 degrees &quot;upwards&quot;) below that level, you have to run them as separate vents and join at or above that level. i.e. you cannot run &quot;horizontal&quot; under the counter.