How to Install The Seaflo Raw Water Electric Marine Toilet Macerating in A fifth Wheel  

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Expert Reply:

Great question! Macerating toilets like the Seaflo do not connect to the standard 3-inch RV floor flange like a traditional gravity toilet does. That flange is designed for toilets that drop waste straight down into the black tank. A macerating toilet works differently it grinds the waste and pumps it out through a 1-inch to 1-1/2-inch discharge hose instead. Because of that, the toilet doesn’t seal to the flange at all. Instead, you would cap or seal off the existing 3-inch flange opening with a mechanical test plug or glue a cap over it to prevent tank odors from coming up, then run the discharge hose directly to a proper inlet fitting on the black tank.

For installation, the toilet simply bolts to the floor using the mounting holes in the base, similar to how a residential toilet mounts, but without using a wax or foam ring. You’ll pre-drill pilot holes and secure it with stainless screws or bolts for stability. From there, connect the discharge hose to the tank using proper sanitation hose and clamps, and wire the unit to a fused 12V power source per the instructions. So it’s more of a pump-style installation than a direct drop-in replacement, but it works great when plumbed correctly.

expert reply by: Heather A

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