Woodalls Open Roads Forum: General RVing Issues: Additives for Grey Water Holding Tank
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 > Additives for Grey Water Holding Tank

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crcr

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Posted: 08/11/14 12:08pm Link  |  Quote  |  Print  |  Notify Moderator

This is a question regarding grey water tanks only. I have been using one of the various odor control products for RV grey water tanks, Camco, etc. I'm about out of product, so I'm looking for any suggestions as to what to use for a grey water tank additive -- commercially sold products, but also, are there any additives of products usually in the home suggested for the grey water tank?

Another question, I'm a bit overstocked on additive for the black water tank -- is there any reason it wouldn't work to dilute the black water additive a bit with water, and (until I use up my 'overstock') use some of that for grey water tank additive?

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Posted: 08/11/14 12:13pm Link  |  Quote  |  Print  |  Notify Moderator

Household bleach.


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enblethen

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Posted: 08/11/14 12:19pm Link  |  Quote  |  Print  |  Notify Moderator

No problem with using black tank chemicals in grey tank. I would not use it very often as it is a waste.
No, chemical is normally required as the dish soap from the galley sink and regular hand soap from bath should keep it clean and odor free.


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DutchmenSport

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Posted: 08/11/14 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

Agree as stated above. No need for chemicals in the gray tank. Dishwashing soap and shower soap will keep the tank pretty clean. If you want to give it a good "swish" cleaning, drain the tank, pour some bleach down your drains, ad a few gallons of water and just drive around. The bleach will clean the tank just fine. Be sure to drain the bleach water (catch it in a bucket and pour the bucket down the sink or toilet in your hosue) and then add some clean water to rinse the slide valve off. You don't want bleach only sitting on the slide. Rinsing by adding more water will keep it from drying out. No need for tank additive chemicals. You've already got everything you need.


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MitchF150

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Posted: 08/11/14 12:34pm Link  |  Quote  |  Print  |  Notify Moderator

My grey tank smells worse than my black tank! Mostly because I can flush the heck out of the black tank, but can't flush out the grey tank with any kind of pressure like I do with the black.. Just filling it up and dumping helps some, but really is just a waste of time and water.

I've used the 'grey tank' deodarizors and I don't think it worked very well.. Even tried partially filling it up and driving to my destination with it, thinking it would slosh around enough to clean it a bit.. I guess it did to some extent, but it still stunk..

Just my experience with it.. I've considered getting one of those kits that installs spray heads thru the tank, but haven't wanted to really do that either..

Good luck!

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Posted: 08/11/14 01:36pm Link  |  Quote  |  Print  |  Notify Moderator

We have never put anything in our grey tank except drain water from the sinks and shower. It's 14 years old and the grey water tank has never put out a detectable odor and we us it a lot.


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crcr

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Posted: 08/11/14 01:54pm Link  |  Quote  |  Print  |  Notify Moderator

We don't smell any odor inside the TT from the grey water tank, but when I dump it, there is a noticeable odor, even though I have been using the Grey Water Odor Control (lemon smell or some such). The odor when dumping kind of surprises me, as 1) the wife doesn't put greasy water or water with a lot of food debris down the sink, and 2) we always dump the tank right after camping for 4 or 5 nights.

* This post was edited 08/11/14 02:02pm by crcr *

Tin Pusher

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Posted: 08/11/14 02:33pm Link  |  Quote  |  Print  |  Notify Moderator

Use Odorloss in both. Never ocurred to me not to


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kmbelt

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Posted: 08/11/14 03:01pm Link  |  Quote  |  Print  |  Notify Moderator

I use this in both my grey and black tanks. Safe for septic tanks too.

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IAMICHABOD

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Posted: 08/11/14 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

crcr wrote:

We don't smell any odor inside the TT from the grey water tank, but when I dump it, there is a noticeable odor, even though I have been using the Grey Water Odor Control (lemon smell or some such). The odor when dumping kind of surprises me, as 1) the wife doesn't put greasy water or water with a lot of food debris down the sink, and 2) we always dump the tank right after camping for 4 or 5 nights.


I would check and replace the air admittance valves
located near your sinks,they are cheap and can be found at most big box stores like Home Depot and Lowes as well as smaller hardware stores.

If they fail they will let the smell from the grey tanks in and believe me they can smell just as bad as the black tank if not worse.


Changed mine out and the smell was gone!


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