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GREY WATER HOLDING TANK TREATMENT

GPG52_
Explorer II
Explorer II
PROBLEM:
Our galley grey water holding tank has developed a mild odor. We would like to arrest the problem before it gets out of hand.

QUESTION:
Can you use DOMETIC Premium Holding Tank Treatment (Formaldehyde-Free Formula)in the galley grey water holding tank?

GPG
GPG ๐Ÿ™‚
2014 Ford F250, 6.2L, 4.30 Ratio, 6 speed
2014 Cougar (by Keystone) 327 RES
20 REPLIES 20

old_guy
Explorer
Explorer
you can use Happy camper in your grey water tanks

SoundGuy
Explorer
Explorer
I've been using Walex Elemonate in the grey tank for a couple of years now, no odours at all. :B
2012 Silverado 1500 Crew Cab
2014 Coachmen Freedom Express 192RBS
2003 Fleetwood Yuma * 2008 K-Z Spree 240BH-LX
2007 TrailCruiser C21RBH * 2000 Fleetwood Santa Fe
1998 Jayco 10UD * 1969 Coleman CT380

lenr
Explorer III
Explorer III
the galley gray tank just doesn't get enough volume of water flushed through it to keep the bacteria making a stink washed out. We had the same problem the first 6 months of our new trailer until I started using grey tank deodorant periodically. Clorox is VERY effective at killing grey tank odor, but is also VERY effective at making the slide valves sticky. If you don't like changing out the slide valves, use a deodorant specifically for the grey tank. Some of the new eco-friendly black tank deodorants are labeled for use in grey tanks, also.

ksg5000
Explorer
Explorer
Your really not suppose to smell the gray water tank in your RV - you might consider checking your anti-siphon trap vent devices and make sure you have water in your p traps. The anti siphon traps are easy to replace and inexpensive.
Kevin

DutchmenSport
Explorer
Explorer
You can. It won't hurt anything. A tank is a tank, they are all made exactly the same. But the problem is more likely, you've got food particles stuck to the bottom of the tank or the sides.

An easier solution, just like your black tank, fill it with a few gallons of water and pour in a half gallon of bleach, take it for a drive for 20 minutes so the contents can slosh around real good and break all those particles and stuck on foods away, then come home and drain the tank immediately. Then fill the tank again to flush the bleach.

It will remove all food particle, and the bleach will clean the inside of the tank, and it won't smell (like crud) any more.

We do this about twice a season, black and grey tanks. (we have 3 tanks).

Lwiddis
Explorer II
Explorer II
Yes. Other options also available. Difference between grey and black tanks is what is drained into them.
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad