what size duckbill valve?

[CLH]

What size duckbill valve for the 808 model sealand vacuflush toilet? I'm ripping through manuals, the internet, and the Dometic web site and I can't seem to find it- is it the 1.5" or the 2"? Trying to pick up some spares... also do they have a "shelf life?"

Thanks-

Cheryl

 

[gerryb]

Not sure you'll find anything using the 808 reference. What pump do you have? The 2" goes on M series vacuum pump. I do think you have the M series.

 

[Mike Blake]

1 1/2 go in the "S" pump, 4 of them

 

[CLH]

Thanks- that's what I can't figure out which series pump I have. Where is that information located? It didn't seem to be in the owner's manual nor in the Sealand/Vacuflush manual as that one covered several models. Perhaps I'll just get the larger ones and roll the dice.

Cheryl

 

[gerryb]

You're looking in your Engine Room for something like the pump below. The plate on the top tells you what parts you need including the duck bill valve model numbers. This is a vacuum generator pump used in a vacuflush system. The duck bill valves are inside along with a bellows and seals that can all be a source of air leakage.

 

[bc225]

I have the same boat. The duck bills are 1.5s. You have a port and starboard pump and each pump require two pair of duckbills.

 

[CLH]

Gerryb - thanks- that's exactly what I need - !!

Cheryl