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I want to purchase a bowl seal kit, but don't know which model I need for the factory installed vacuflush in my 1999 4788, one has an "overflow" hole according to wallmart and one doesn't. Any ideas which one I need?
Just the brush. I have a spare seal and it's easy to change, but the brush does the trick so far. My guess is either seal pictured will work, but why not take the old one for comparison?
The brush worked, thanks. I see that Sealand also makes a seal cleaner has anyone used it? How big of challenge is it to replace the duck valves on the 4788?
Can't comment on the seal sealer but changing the duckbill valves is relatively easy on the forward head, but more complicated on the guest head due to its location next to the stairs.
Start with the forward head as practice as it's easy to get to behind the glass breezeway doors. Lifting out the doors makes it easier. You'll need 2 sets (4) for each pump - 2 each side. Removing the whole pump and changing them on a bench is easiest. Make sure you put the new replacements pointing the same way as you find them.
The guest head is more difficult to get at, but removing the small door AND the door frame will give you more wiggle room to get the whole pump out. I wrote up a how to guide a year or so back. I'll see if I can find it and attach.
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