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Old 04-16-2019, 06:35 AM   #1
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HC331RL, one grey tank or two?

Brand new owner and new to the forum. 1st post. Hi Everyone!
Long time camper, first fifth wheel.

Just went thru orientation yesterday on our new HC331RL, we will pick it up this Saturday after they add the slide toppers.

We saw the two grey tank dump valves, but the orientation guy said there's only a single grey tank. The sales literature only references "100 gal" of grey. Two valves, one tank, doesn't make sense to me.

Does anyone know what the real deal is on one vs two grey tanks and if two, how much does each hold?

2018 Chevy 2500HD 6.6L T-Diesel
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Montana High Country 331RL
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Old 04-16-2019, 07:53 AM   #2
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There should be two and they will both be the same size so just divide by two.
Dick and Joyce, Wilsey, KS & Lakewood, NM
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Old 04-16-2019, 10:06 AM   #3
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Not unusual for a sales person to be clueless about the products they are selling. As mentioned, there should be 2 tanks. 1 for the galley (kitchen sink) and 1 for the bath sink and shower. Don't know if you have a washer/dryer, but if you do, find out where it drains to so you don't end up with a nasty surprise when you use it. Some drain into the bath gray tanks and some go directly to the main drain line.
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Old 04-16-2019, 10:34 AM   #4
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The second grey tank valve is usually just in front of the rear wheel not in convenience center. The two valve in convenience center is, one black tank the other is grey tank.

Dan & Sandy Huhn
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