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Old 03-13-2018, 06:10 AM   #21
MVBrown
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So my next question is. How do I empty my Fresh Water tank? Which can hold up to 60 gal. Do I use the low water drain at the rear of the RV?
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Old 03-13-2018, 09:50 AM   #22
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I contacted the Keystone factory and got a quick reply: "Thank you for contacting Keystone RV. Your Cougar has one valve to pull to empty both gray tanks:. I guess they saved $5.00.
Does this mean that when one gray tank is full, it begins filling the other gray tank?

As an aside, how did your 32RLI tow with the 3/4 ton? I pick mine up on Friday and have the 2018 Chevy Silverado 2500HD with 4.10 axle.
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Old 03-13-2018, 10:34 AM   #23
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They didn't say, but I would think they are just connected as there is no switch over lever or switch. The 2500 pulls great with a Husky Centerline TS.
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Old 03-13-2018, 12:00 PM   #24
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No, one Grey tank is for the shower, and the other Grey tank is for the sink. So you have two 30 gal. tanks that both exit through the same pipe. My RAM 2500 HD pulls mine really nice. I used to have a Jayco, Jay-Flight Swift, 265RLS that was about 2,000 lbs. lighter, and frankly I can't tell much difference.
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Old 03-13-2018, 12:33 PM   #25
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I have two 30 gal tanks and one valve. That means they must be connected together or one wouldn't empty. The kitchen sink is close to the shower but they probably are plumbed to their own tanks. Keystone says: "Thank you for contacting Keystone RV. Your Cougar has one valve to pull to empty both gray tanks." That means they are acting as a single tank. I had a 2015 Ram 1500 Hemi and pulled a 2014 Flagstaff 26RKS, about 6,000 lbs loaded, without any problem. The 32 RLI is over 8,000 dry, so the 2500 6.4L entered the picture.
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Old 03-19-2018, 11:07 AM   #26
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From my dealer: "Just an FYI, we have been building the 32RLI since the middle of last year. When we converted to that floorplan from the old 30RLI we were using a 2 valve gray tank system. I’m sure many of the original 32RLI models had the same tank architecture and plumbing as the trailer that it replaced on the initial production. There are many dealers who are low-volume sellers and it takes them a long time to sell their inventory. You could definitely have a buyer on a forum who may have just picked one up but it was built a long time ago."
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Old 03-19-2018, 12:07 PM   #27
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Yeah mine was actually just built in January. So it has the new configuration.
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Old 03-22-2018, 09:15 AM   #28
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Here is a diagram of two gray tanks with only 1 dump valve. Matches my 2017 Cougar 26RBIWE. Got it from Keystone.
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Old 03-23-2018, 01:17 AM   #29
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So my next question is. How do I empty my Fresh Water tank? Which can hold up to 60 gal. Do I use the low water drain at the rear of the RV?
Your Cougar should have a freshwater tank drain separate from the low point drains. And it will probably be located directly under the tank area with a petcock on the end of it hanging under your coroplast.
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Old 04-02-2018, 03:29 PM   #30
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Both grey tanks have 1 drain valve,they are tied in together, the reason the shower grey tank isn't connected to the black tank is,you have the black flush to clean your sewer hose,Called keystone on
This,customer service really couldn't answer,because blue prints are still being used in production
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