Gray Water Tank Flush

[Road Geezer]

So we have a 2011 27' Flying Cloud we've used a lot since we bought it last February. We're coming up to our first anniversary and I'd like to thoroughly wash out the gray water tank just for good measure. Our black water tank has a hose connector that allows the tank to be sprayed while dumping. Using that spray seems to work well, as we have almost never hand any odor problems.

We don't have odor problems with the gray water tank either; I'd just like to make sure we don't. A couple times we've refilled the gray water tank after dumping and sort of flushed it out that way. However, this approach uses a lot of water, and I'm concerned that food particles may adhere to the tank because there's no spraying going on.

Anyone out there have any suggestions? I'd appreciate your help.

Paul

[idroba]

I can only say that having had maybe 17 AS products over the past 34 years, I have never flushed out a gray water tank, and have never had any problems with odor from one. I simply don't think it is a problem worth having any concern about.

Remember that is my opinion only, but based on my experiences.

[tpi]

I don't think its a problem either at least in a practical way. I've never reverse flushed the gray tank and its fine odor wise. If I had a problem I'd fill and dump till it ran clear. If under full hookups I'd let the gray tank fill fully before dumping.

A product called Flush King allows reverse flushing and has viewing window to see what the drain water looks like.

[Skater]

Remember that gray water is gray mostly because of all of the soap in it. I wouldn't bother flushing it.

[overlander63]

Originally Posted by Road Geezer

So we have a 2011 27' Flying Cloud we've used a lot since we bought it last February. We're coming up to our first anniversary and I'd like to thoroughly wash out the gray water tank just for good measure. Our black water tank has a hose connector that allows the tank to be sprayed while dumping. Using that spray seems to work well, as we have almost never hand any odor problems.

We don't have odor problems with the gray water tank either; I'd just like to make sure we don't. A couple times we've refilled the gray water tank after dumping and sort of flushed it out that way. However, this approach uses a lot of water, and I'm concerned that food particles may adhere to the tank because there's no spraying going on.

Anyone out there have any suggestions? I'd appreciate your help.

Paul

Originally Posted by Skater

Remember that gray water is gray mostly because of all of the soap in it. I wouldn't bother flushing it.

Exactly. Now, if it really, really really bothers you, and you want to do this, put a capful of liquid laundry detergent into the grey tank with a couple gallons of water, and drive around for a while. Maybe from your home to the campground. Empty it when you get there.

[Rebee]

I use this product and it back flushes the gray tank fairly well. RV Hydro Flush - Product - Camping World

[Road Geezer]

I get the drift. Flushing the gray water tank is probably something I shouldn't worry about UNLESS there IS a problem. Got it ! That's probably why AS didn't provide a spray hookup in the first place.

So, again thanks everyone for the advice. These Forums are great.

Paul