Reconfigure 1 1/2” and 3/4” drain line to all 3/4”. Saving space on drain and replacing old leaking pipe. Cap off intake and remove intake drain for old water heater power vent. Make much more space in basement drain for furnace. Reroute furnace and water heater drain all drains flowing properly and no leaks at this time. Only had one 3” pvc cap so we will return Tuesday 10-2 for 3” exhaust vent cap outside will need 5” cut of 3” pvc Add additional pvc cap on exhaust pipe now blocking both pipes to the furnace room that were wide open allowing heavy moisture intake during seasons.