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behengold's avatar
behengold
Explorer
Oct 24, 2015

Flo jet macerater pump won't fit sewer line output

I assumed sewer lines were universal.I tried to use my flo jet on my new used class A and it won't fit.The new output fitting is approximately4.5". The flow jet is around 3.75". Tried to buy a new fit...
Class A
Old-Biscuit's avatar
Old-Biscuit
Explorer III
Oct 25, 2015
Sounds like previous owner used Thetford valves/parts when they installed that 'extra' drain valve.

Valterra OEM & Aftermarket valves & fittings are 1.5". 2" or 3"

ABS Piping/Fittings
3" (nominal) have an OD of 3.5"
3.5" (nominal) have an OD of 4"

No 3.75"


So that 'adapter' should mate up.
Good thing for New Old Stock.......Valterra discontinued that adapter

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