I am finally getting around to repairing my jabsco marine head. I will this winter as Peggy has recommended replace it. My question is this, I have reviewed the parts manual and cannot find any part called the flapper valve, is it called something else ? As you may recall, I cannot fill the bowl with water but can pump it empty, the consenus was that it must be the flapper valve. However, I can't find a flapper valve anywhere on the parts list. What else is it called? Thanks
flapper valve again
- Thread starter Mike8193
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Flapper Valve
I would think that the description "flapper valve" would be perfectly obvious, but then I've been in this business for nearly 36 years... Jabsco calls it a "Base Valve Gasket" - item# 16
I would think that the description "flapper valve" would be perfectly obvious, but then I've been in this business for nearly 36 years... Jabsco calls it a "Base Valve Gasket" - item# 16
Oooppps!
Wrong item; actually it's item #21, "Top Valve Gasket" But to anyone else, they're flapper valves.
Wrong item; actually it's item #21, "Top Valve Gasket" But to anyone else, they're flapper valves.
As Vic said, the part you need is # 21.
To everyone BUT Jabsco, it's called a flapper valve because, while it does serve as a gasket, it has cutout with a tongue in it...the tongue is weighted to allow it to "flap" open when water is pushed through it, then fall back into place. It's a kind of one-way valve. In fact, flapper valves were originally used in most, if not all, marine toilet discharge fittings...the forerunner of the joker valve. I managed to find photos of both the Jabsco "top valve gasket" version and a Raritan flapper valve on a retailer's list of toilet repair parts. http://www.ess-kayyards.com/catalog/page23.html They didn't bother to take the Jabsco out its plastic bag to shoot it, so it's not as easy to see as the Raritan--which, btw, if about 2/3 down the page. I've never head of the retailer till I tripped over 'em in a Google search, so I dunno how good their prices are. Now that you know what the part looks like, you should be able to find it on the drawing for any toilet that uses one, and then go to the parts list to find out what they call it. Btw...flapper valves come in a lot of different versions for use in various industries. You can see a somewhat different version of one in the bottom of your household toilet flush water tank...and another is out of sight in a household toilet discharge line.
To everyone BUT Jabsco, it's called a flapper valve because, while it does serve as a gasket, it has cutout with a tongue in it...the tongue is weighted to allow it to "flap" open when water is pushed through it, then fall back into place. It's a kind of one-way valve. In fact, flapper valves were originally used in most, if not all, marine toilet discharge fittings...the forerunner of the joker valve. I managed to find photos of both the Jabsco "top valve gasket" version and a Raritan flapper valve on a retailer's list of toilet repair parts. http://www.ess-kayyards.com/catalog/page23.html They didn't bother to take the Jabsco out its plastic bag to shoot it, so it's not as easy to see as the Raritan--which, btw, if about 2/3 down the page. I've never head of the retailer till I tripped over 'em in a Google search, so I dunno how good their prices are. Now that you know what the part looks like, you should be able to find it on the drawing for any toilet that uses one, and then go to the parts list to find out what they call it. Btw...flapper valves come in a lot of different versions for use in various industries. You can see a somewhat different version of one in the bottom of your household toilet flush water tank...and another is out of sight in a household toilet discharge line.
thanks
Thanks Peggy, you are great, I really appreciate you as a resource and your book is great. Vic, thanks for your advice, I have never taken a marine head apart and the term flapper valve is not obvious to me, I appreciate you guys clearing this up. Thanks again
Thanks Peggy, you are great, I really appreciate you as a resource and your book is great. Vic, thanks for your advice, I have never taken a marine head apart and the term flapper valve is not obvious to me, I appreciate you guys clearing this up. Thanks again
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