Gulf Stream Owners RV Forum - View Single Post - Location of gray and black holding tanks on 1994 Conquest W6300DH

waterfowlah · 07-23-2018, 08:13 AM

I am smack dab in the middle of a 1994 conquest black tank issue. on mine the bathroom sink is plumbed into the black tank. I would assume they do that to make sure there is enough fluid to move solids when dumped. Tanks are plastic and only about 30 gallons. also they taper 4" maybe at the toilet larger at the dump valve. the sink has a flapper valve and is vented to the same vent as the black tank through the roof vent.

hope this helps.

07-23-2018, 08:13 AM	#5
waterfowlah New Member Join Date: Jun 2018 Posts: 1	I am smack dab in the middle of a 1994 conquest black tank issue. on mine the bathroom sink is plumbed into the black tank. I would assume they do that to make sure there is enough fluid to move solids when dumped. Tanks are plastic and only about 30 gallons. also they taper 4" maybe at the toilet larger at the dump valve. the sink has a flapper valve and is vented to the same vent as the black tank through the roof vent. hope this helps.