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Old 14-03-2021, 12:03   #16
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Location: North of San Francisco, Bodega Bay
Boat: 44' Custom Aluminum Cutter, & Pearson 30
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Re: Joker valve do I need one

I like my Air Head. I hate sewage-filled hoses and tanks.
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Old 14-03-2021, 12:06   #17
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Re: Joker valve do I need one

One has to assume that the engineer who designed your head knew what he or she was doing when a joker valve was included in the design. Replace it. And any other rubber parts that seem questionable
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Old 14-03-2021, 12:18   #18
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Re: Joker valve do I need one

On my 1984 Pearson all the lines from the toilet to the holding tank were clogged it was very tough job replacing all of them hope thatís not the case on yours.
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Old 14-03-2021, 13:27   #19
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Re: Joker valve do I need one

Sea water and urine creates calcium deposits in the waste plumbing. Regular treatments of muriatic acid ( I use Acid Magic due to it's extremely low odor) will clear it. If left to build it will act like Velcro and toilet paper will adhere to it and eventually clog the system. House hold, non-marine, toilet paper accelerates the clogging. Don't ask how I know.
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Old 14-03-2021, 13:28   #20
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Re: Joker valve do I need one

Sea water and urine creates calcium deposits in the waste plumbing. Regular treatments of muriatic acid ( I use Acid Magic due to it's extremely low odor) will clear it. If left to build it will act like Velcro and toilet paper will adhere to it and eventually clog the system. House hold, non-marine, toilet paper accelerates the clogging. Don't ask how I know.
The joker valve prevents backflow that you never want to deal with. Replace as needed!
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Old 14-03-2021, 22:58   #21
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Re: Joker valve do I need one

Quote:
Originally Posted by Trickyrick View Post
This will be the first time that I've had two do any work on my electric toilet. The water in the bowl just swirls around I've seen posts where it refers to replacing the Joker valve. I'm wondering why I actually need one. My sewage holding tank is well below the bottom of the toilet there's no way that waste would feedback into the bowl so I'm thinking I should be able to just remove the Joker valve. Any opinions thank you
If the water is just swirling around in the bowl, I would be removing the macerator pump in the base (assuming this is the type you have) and checking the impeller and macerator blades. Sounds like they are fouled by something.

I would also not be in a hurry to remove the joker valve. They are not perfect, but worth having, even in your case. Otherwise, install a ball valve in the waste discharge line, but that's a hassle every time.
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