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Old 10-23-2016, 02:55 PM   #1
BENandKIM
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Question about Black Water Tanks for 1 1/2 Baths

We are new at this and have a 2017 Montana 3911FB. It has 1 1/2 baths with 2 black water tanks (one for each toilet). We have only used the half bath toilet thus far since we have only taken it out once and we filled it successfully but now are not sure which valve to use exactly to fill the full bath black tank. Could someone please shed some light on which valve we are using to put water into the full bath black tank. I don't want to add water to the wrong location and I need to make sure my full bath has water in its black tank. Thanks for your help!
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Old 10-23-2016, 03:41 PM   #2
spicercars
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Re: Question about Black Water Tanks for 1 1/2 Baths

My question is why are you putting water into the black tank? The black tanks are for your bathroom waste not water?
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Old 10-23-2016, 03:46 PM   #3
BENandKIM
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Re: Question about Black Water Tanks for 1 1/2 Baths

We were told by the service tech to add a little water to them to make them easier to flush out and keep cleaner.
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Old 10-23-2016, 03:53 PM   #4
JRTJH
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Re: Question about Black Water Tanks for 1 1/2 Baths

Quote:
Originally Posted by BENandKIM View Post
We were told by the service tech to add a little water to them to make them easier to flush out and keep cleaner.
Use the foot pedal, fill the toilet bowl a couple of times, flush and you've added the water your service tech suggested. No need for any special attachments, secret fill ports or modifications.

As my grand daughter says, "Easy peezy"
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Old 10-23-2016, 03:58 PM   #5
BENandKIM
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Re: Question about Black Water Tanks for 1 1/2 Baths

Thanks!
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Old 10-23-2016, 06:00 PM   #6
68GS400
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Re: Question about Black Water Tanks for 1 1/2 Baths

We run about two - three gallons of water into the tanks after dumping and add a tank cleaning chemical, Geo method (soap and calgon) or other cleaner to keep tank wet. During trip to next site, the water flushes the sides and ends of tank in effort to remove debris on sensors. It has worked well in a year and half of use. (BTW as far as I can tell the black tank is only 5-7" high so sensors are close together. A single sheet of TP could cover them all!)
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Old 10-24-2016, 01:33 AM   #7
BENandKIM
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Re: Question about Black Water Tanks for 1 1/2 Baths

Thanks John!
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