Grey Tank Clogged

[RG@2434]

Parked ina resort for 3 months useing washer Dryer on regular basis.Used extra soap hot water regularly with dishes and also wiped frypans etc before draining to tank.Tank had to be power flushed and cleaned to release and tech said greasy sludge was evident.Could this have been the Extra amount of soap we added that maybe clogged with the clothes Washer?Thought the extra soap and hot water would lessen chance of grease buildup?

 

[Neal]

I'm not sure what size port is on the bottom of your tank but my guess is it's a 3 inch port like mine. They may step down the plumbing (pvc piping) but I would find it hard to believe that could get stopped up. I put Cascade (liquid type) in my tanks every few months as it seems to handle that type of product in dishwashers nicely, so I use it for tank treatment, nothing else for me. No issues to date. Maybe try some Cascade liquid and let it set overnight and then flush a time or two and see if that helps?

There could be a clog somewhere else and therefore there is no air vent which is needed for it to drain. Cascade in all the sinks feeding to the tank is what I'd do. Are any sinks not draining? Shower? If everything is draining properly then that should be an indication the plumbing to the tank is good.